BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC
N-30D, 1998-02-27
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- --------------------------------------------------------------------------------
         THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
                          ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------




                                                                January 31, 1998


Dear Trust Shareholder:

      U.S.  fixed income  investors  have been rewarded with solid total returns
over the past twelve months ended  December 31, 1997,  as low inflation  despite
strong economic growth drove Treasury yields lower.

      The economy has shown some signs of slowing,  which BlackRock  expects may
persist as  recessions in the emerging  Asian  economies and Japan will moderate
U.S.  growth.  We do not see immediate signs of inflationary  pressure nor do we
anticipate an imminent  change in monetary  policy by the Federal  Reserve.  Our
longer-term  outlook  for the  bond  market  remains  optimistic,  based  on the
fundamentally  favorable  backdrop of slower economic growth,  low inflation and
declining Treasury borrowing.

      There are exciting developments  occurring at BlackRock that we would like
to share with you. As you may know,  BlackRock was acquired by PNC Bank, N.A. in
1995. In early 1998 the five investment  management  firms that comprise the PNC
Asset Management Group were consolidated under the BlackRock umbrella. This will
result in BlackRock Inc.  becoming a $100 billion money  management firm ranking
it among the 25  largest  in the  country.  We look  forward to using our global
investment management expertise to present exciting investment  opportunities to
closed-end fund shareholders in the future.

      This report contains detailed market and portfolio strategy  commentary by
your Trust's  managers in addition to the Trust's audited  financial  statements
and a detailed portfolio listing. We thank you for your continued  investment in
the Trust and wish you a successful new year.


Sincerely,





/s/                                                /s/
- -----------------------                            --------------------------
Laurence D. Fink                                   Ralph L. Schlosstein
Chairman                                           President


                                       1


<PAGE>


                                                                January 31, 1998

Dear Shareholder:

      We are pleased to present the annual report for The  BlackRock  California
Insured Municipal 2008 Term Trust Inc. ("the Trust") for the year ended December
31, 1997.  We would like to take this  opportunity  to review the Trust's  stock
price and net asset value (NAV) performance, summarize developments in the fixed
income markets and discuss recent portfolio management activity.

      The  Trust is a  non-diversified  closed-end  bond fund  whose  investment
objective is to manage a portfolio of municipal debt securities that will return
$15 per share (an amount equal to the Trust's  initial public offering price) to
investors on or about  December 31, 2008,  while  providing  high current income
exempt from  regular  federal  and  California  income  tax.  The Trust seeks to
achieve this  objective by investing in high credit quality ("AAA" or insured to
"AAA")  California  tax-exempt  general  obligation  and revenue bonds issued by
city, county and state municipalities.

      The table below  summarizes the changes in the Trust's stock price and net
asset value over the past year:


                            ---------------------------------------------------
                            12/31/97     12/31/96    CHANGE      HIGH     LOW
- --------------------------------------------------------------------------------
 STOCK PRICE                $15.25      $14.625      4.27%     $15.438  $13.625
- --------------------------------------------------------------------------------
 NET ASSET VALUE (NAV)      $16.69      $15.86       5.23%     $16.69   $15.49
- --------------------------------------------------------------------------------


THE FIXED INCOME MARKETS

      The U.S.  economy  exhibited  strong growth and low inflation during 1997,
pushing  bond yields  below 6% for the first time since  early  1996.  Fueled by
increased consumer spending and low unemployment, growth was robust. The primary
inflation indicators,  consumer and producer prices, remained dormant throughout
the period and  unemployment  rate remained low. After  increasing the Fed Funds
Rate to 5.50% in March,  the Federal  Reserve  left the rate  unchanged  for the
remainder of the year, as the  combination  of slowing  domestic  growth and the
economic turmoil in Asia threatened to exert deflationary  pressures on the U.S.
economy.

      The positive  momentum has continued into the early days of 1998 based, in
part,  on the  possibility  of early  elimination  of the budget  deficit and on
comments by Fed Chairman  Greenspan that deflation was an issue.  New home sales
recently hit a new cyclical peak, the employment picture remains very strong and
consumer confidence and spending remain high. Despite the strong growth, current
and future inflation both appear to be controlled.

      Municipal bonds, as measured by the LEHMAN MUNICIPAL BOND INDEX,  posted a
9.20%  total  return for the year,  versus  9.68% for the  taxable  bond  market
(measured by the LEHMAN AGGREGATE INDEX).  The substantial  decline in municipal
interest rates resulted in 1997 being the third largest  issuance year on record
(a  19%  increase  over  1996),   which  negatively   impacted   municipal  bond
performance.  After  keeping pace with the  Treasury  market rally in the second
quarter,  municipals  cheapened in relation to Treasuries during the latter half
of the year due to reduced  participation  by retail investors at lower interest
rate levels and increased supply.

      California's  economy is  recovering.  Today's growth  industries  include
entertainment,  high  technology,  biotechnology  and small start-up  businesses
which have recently  contributed to the state's fiscal viability.  Additionally,
the  construction  industry is booming,  as  building is  occurring  in both the
commercial  and  residential  sectors.  A growing  population  has  resulted  in
increased revenues,  stabilizing the State's financial position to such a degree
that California maintains a balanced


                                       2



<PAGE>


budget. Further,  California leads the U.S. in job growth, having created over 1
million jobs during the last four years and projecting 3% employment growth rate
in 1997.  All of these  positive  factors  resulted in Fitch raising the State's
credit rating to AA- in September 1997.  Asia's economic turmoil will effect the
California economy, but it is premature to gauge the severity of the impact.

      Looking forward, we expect issuance of municipal  securities in 1998 to be
similar  to 1997  levels,  with an  increase  in new  supply  being  offset by a
decrease  in  refunding  supply.  BlackRock  remains  focused  on  high  quality
municipal  securities,  because the yield  advantage of  purchasing  lower rated
securities  remains  marginal.  The strong  state of the  economy is expected to
continue,  providing strong fundamentals for municipal issuers. We expect to see
more discussions  about tax reform towards the end of the first quarter of 1998,
which may create buying opportunities.


THE TRUST'S PORTFOLIO AND INVESTMENT STRATEGY

      The Trust's  portfolio is actively  managed to diversify  exposure  across
various  sectors,  issuers,  revenue  sources and  security  types.  BlackRock's
investment strategy emphasizes a relative value approach, which allows the Trust
to capitalize upon changing  market  conditions by rotating  municipal  sectors,
credits and coupons.  Portfolio  trading activity was very low during 1997, as a
majority of the bonds in the  portfolio  are trading at prices  which,  if sold,
would  result in a taxable  capital  gain.  Additionally,  as these  bonds  were
purchased in higher interest rate environments.  Were they to be sold, the Trust
would be forced to reinvest the proceeds in lower yielding  securities.  Both of
these  factors led us to decide that the most  prudent  investment  strategy for
1997 was to maintain the current portfolio structure.

      Additionally,  the  Trust  employs  leverage  to  enhance  its  income  by
borrowing at  short-term  municipal  rates and  investing the proceeds in longer
maturity  issues  that have  higher  yields.  The  degree to which the Trust can
benefit  from its use of  leverage  may affect its  ability to pay high  monthly
income. The Trust has experienced  favorable short-term municipal rates over the
past year. The Federal Reserve's  decision to raise the Fed funds target rate in
March 1997 did not  significantly  impact the short end of the  municipal  yield
curve, allowing the rates the Trust pays to preferred  shareholders (the Trust's
leverage cost) to remain affordable.

      The  following  charts  compare the Trust's  current and December 31, 1996
asset composition:

     ---------------------------------------------------------------------------
         THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
     ---------------------------------------------------------------------------
        SECTOR                           DECEMBER 31, 1997   DECEMBER 31, 1996
     ---------------------------------------------------------------------------
        Transportation                          20%                 21%
     ---------------------------------------------------------------------------
        Water & Sewer                           19%                 19%
     ---------------------------------------------------------------------------
        Lease Revenue                           19%                 19%
     ---------------------------------------------------------------------------
        County, City & State                    11%                 12%
     ---------------------------------------------------------------------------
        Utility/Power                           9%                  9%
     ---------------------------------------------------------------------------
        Certificates of Participation           7%                  7%
     ---------------------------------------------------------------------------
        Hospital                                6%                  5%
     ---------------------------------------------------------------------------
        Special District                        3%                  3%
     ---------------------------------------------------------------------------
        Tax Revenue                             2%                  2%
     ---------------------------------------------------------------------------
        Education                               2%                  2%
     ---------------------------------------------------------------------------
        Other                                   2%                  1%
     ---------------------------------------------------------------------------


      We appreciate  your continued  confidence and look forward to managing The
BlackRock  California Insured Municipal 2008 Term Trust Inc. in the coming years
to realize  its  investment  objectives.  Please feel free to contact the mutual
fund



                                       3


<PAGE>


specialists at BlackRock's marketing center at (800) 227-7BFM (7236) if you have
any questions that weren't answered in this report. Additionally,  you can reach
us via e-mail at [email protected].


Sincerely,



/s/                                      /s/
- ------------------------------           ---------------------------
Robert S. Kapito                         Kevin Klingert
Vice Chairman and Portfolio Manager      Managing Director and Portfolio Manager
BlackRock Financial Management, Inc.     BlackRock Financial Management, Inc.


 ------------------------------------------------------------------------------
         THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
 ------------------------------------------------------------------------------
   Symbol on New York Stock Exchange:                             BFC
 ------------------------------------------------------------------------------
   Initial Offering Date:                                   September 18, 1992
 ------------------------------------------------------------------------------
   Closing Stock Price as of 12/31/97:                           $15.25
 ------------------------------------------------------------------------------
   Net Asset Value as of 12/31/97:                               $16.69
 ------------------------------------------------------------------------------
   Yield on Closing Stock Price as of 12/31/97 ($15.25)1:         5.07%
 ------------------------------------------------------------------------------
   Current Monthly Distribution per Common Share2:               $0.064375
 ------------------------------------------------------------------------------
   Current Annualized Distribution per CommonShare2:             $0.7725
 ------------------------------------------------------------------------------



- ----------
1 Yield on Closing Stock Price is calculated by dividing the current  annualized
  distribution per share by the closing stock price per share.
2 Distribution is not constant and is subject to change.





                                       4



<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
PORTFOLIO OF INVESTMENTS
DECEMBER 31, 1997
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                                OPTION
           PRINCIPAL                                                                             CALL
   RATING*  AMOUNT                                                                           PROVISIONS++      VALUE
 (UNAUDITED) (000)                                 DESCRIPTION                                (UNAUDITED)    (NOTE 1)
- -----------------------------------------------------------------------------------------------------------------------
  <S>      <C>       <C>                                                                   <C>            <C>          
                     LONG-TERM INVESTMENTS -- 142.0%
                     California Hlth. Facs. Fin. Auth. Rev.,
   AAA     $ 6,850      Marin Gen. Hosp., Ser. A, 5.75%, 8/01/09, FSA ..................   08/03 at 102   $ 7,294,839
   AAA       2,000      Sutter Hlth. Care Sys., 5.70%, 8/15/09, MBIA ...................   08/06 at 102     2,154,280
                     California St., G.O.,
   AAA       2,000      6.25%, 9/01/08, FGIC ...........................................   No Opt. Call     2,300,140
   AAA       3,000      5.50%, 4/01/09, MBIA ...........................................   No Opt. Call     3,252,810
   AAA      15,000      6.30%, 9/01/08, MBIA ...........................................   No Opt. Call    17,314,050
                     California St. Pub. Wks. Brd.,
   AAA       2,100      Energy Efficiency, Ser. A, 5.625%, 10/01/08, AMBAC .............   10/05 at 102     2,264,598
   AAA      10,255      Lease Rev., 6.40%, 9/01/01+, MBIA ..............................   No Opt. Call    11,242,044
   AAA       9,165   California St. Wide Cmnty. Dev. Auth., Lease Rev.,
                        6.00%, 10/01/10, AMBAC .........................................    10/02 at 10    29,861,357
   AAA       2,600   Castaic Lake Wtr. Agcy. C.O.P., Wtr. Sys. Impvt. Proj.,
                        Ser. A, 7.25%, 8/01/10, MBIA ...................................   No Opt. Call     3,220,516
   AAA       5,515   Central Coast Wtr. Auth. Rev., St. Wtr. Proj. Reg. Facs.,
                        6.40%, 10/01/02+, AMBAC ........................................   No Opt. Call     6,133,893
   AAA       5,500   Clovis Unified Sch. Dist., Ser. B, Zero Coupon,
                        8/01/08, FGIC ..................................................   No Opt. Call     3,376,560
   AAA      13,740   East Bay Mun. Utils. Dist., Wtr. Sys. Rev.,
                        6.00%, 6/01/09, AMBAC ..........................................   06/02 at 102    14,791,522
   AAA       4,025   Elsinore Valley Mun. Wtr. Dist., C.O.P.,
                        Ser. A, 6.00%, 7/01/09, FGIC ...................................   No Opt. Call     4,537,543
                     Los Angeles Cnty. Asset Leasing Corp. Rev., AMBAC,
   AAA       2,910      5.95%, 12/01/07 ................................................   No Opt. Call     3,277,591
   AAA       8,090      6.00%, 12/01/08 ................................................   No Opt. Call     9,153,431
   AAA       8,600      6.05%, 12/01/09 ................................................   No Opt. Call     9,764,268
   AAA       1,000   Los Angeles Elec. Rev., 5.75%, 9/01/12, FGIC ......................   09/03 at 102     1,053,030
   AAA       5,765   Los Angeles Wastewtr. Sys. Rev., Ser. B,
                        6.25%, 6/01/08, AMBAC ..........................................   06/02 at 102     6,275,318
   AAA       3,075   Marysville Hosp. Rev., Fremont-Rideout Hlth. Group,
                        Ser. A, 6.20%, 1/01/09, AMBAC ..................................    01/03 at 10    23,351,535
   AAA       8,000   Modesto Irrig. Dist. Fin. Rev., Domestic Wtr. Proj.,
                        Ser. A, 6.00%, 9/01/09, AMBAC ..................................   09/02 at 102     8,635,760
                     Northern California Pwr. Agcy., Multiple Cap. Facs.
                        Rev., Ser. A, MBIA,
   AAA       1,000      6.40%, 8/01/07 .................................................   08/02 at 102     1,103,650
   AAA       3,045      6.50%, 8/01/08 .................................................   08/02 at 102     3,353,063
   AAA       1,000   Orange Cnty. Local Trans. Auth. Sales Tax Rev.,
                        6.00%, 2/15/09, MBIA ...........................................   No Opt. Call     1,124,030
   AAA       5,600   Pittsburg Redev. Agcy. Tax Alloc. Rev.,
                        Los Medanos Cmnty. Dev. Proj.,
                        5.50%, 8/01/07, FGIC ...........................................   08/02 at 102     5,937,064
   AAA       3,075   Riverside Cnty., Trans. Comm. Sales Tax Rev.,
                        Ser. A, 6.50%, 6/01/01+, MBIA ..................................   No Opt. Call     3,370,877
                     Sacramento Mun. Utils. Dist., Elec. Rev., Ser. C,
   AAA       2,500      5.75%, 11/15/07, MBIA ..........................................   11/02 at 102     2,683,375
   AAA       6,250      5.75%, 11/15/08, FGIC ..........................................   11/02 at 102     6,793,575
   AAA       4,700      5.75%, 11/15/09, MBIA ..........................................   11/02 at 102     5,002,116
   AAA       5,700   San Bernardino Cnty. C.O.P., Arpt. Impvt.,
                        6.00%, 7/01/07, MBIA ...........................................   07/02 at 102     6,166,374
   AAA       5,000   San Bernardino Cnty. Trans. Auth., Sales Tax Rev.,
                        6.00%, 3/01/10, FGIC ...........................................    No Opt. Cal     5,347,850
                     San Diego Cnty. Regl. Trans. Cmnty. Sales Tax Rev.,
                        Ser. A,
   AAA       7,830      6.00%, 4/01/08, MBIA ...........................................   04/01 at 102     8,692,944
   AAA       2,500      6.00%, 4/01/08, FGIC ...........................................  No. Opt. Call     2,775,525
   AAA       7,650   San Diego Redev. Agcy. Rev., Tax Allocation-Centre
                        City Proj., 6.00%, 9/01/08, AMBAC ..............................   09/02 at 102     8,241,192
                     San Jose Arpt. Rev., MBIA,
   AAA       8,010      6.00%, 3/01/09 .................................................   03/03 at 102     8,654,565
   AAA       3,000      6.00%, 3/01/10 .................................................   03/03 at 102     3,227,040
   AAA       3,755      6.10%, 3/01/07 .................................................   03/03 at 102     4,110,636

</TABLE>


                       See Notes to Financial Statements.

                                       5


<PAGE>

<TABLE>
<CAPTION>

- ---------------------------------------------------------------------------------------------------------------------
                                                                                                OPTION
           PRINCIPAL                                                                             CALL
   RATING*  AMOUNT                                                                           PROVISIONS++      VALUE
 (UNAUDITED) (000)                                 DESCRIPTION                                (UNAUDITED)    (NOTE 1)
- ----------------------------------------------------------------------------------------------------------------------
   <S>      <C>      <C>                                       <C>    <C>    <C>    <C>


   AAA      $2,865   Santa Clara Cnty. Fin. Auth., Fac. Replacement, Proj. A,
                        6.50%, 11/15/07, AMBAC .......................................    11/04 at 102    $ 3,287,759
   AAA       2,820   Santa Rosa Wtr. Rev., Ser. B, 6.20%, 9/01/09, FGIC ..............  09/02 at 101.5      3,056,090
   AAA       5,000   So. California Rapid Trans. Dist. C.O.P.,
                        Workers Comp. Fund, 6.00%, 7/01/10, MBIA .....................  01/01 at 102.5      5,309,550
                     So. California Rapid Trans. Dist. Rev., Spec.
                        Benefit Assmt. Dist. A1, AMBAC,
   AAA       5,750      5.50%, 9/01/09 ...............................................    09/02 at 100      5,920,545
   AAA       5,500      6.00%, 9/01/08 ...............................................    09/02 at 102      5,937,085
   AAA       8,500   Sonoma Cnty. C.O.P., Capital Rites-Detention Fac.,
                        6.00%, 11/15/10, AMBAC .......................................    11/02 at 102      9,176,600
   AAA       2,000   Univ. of California Rev., Multi-Purpose Projs.,
                        Ser. B-1989, 6.80%, 9/01/99+, AMBAC ..........................    No Opt. Call      2,129,340
                        West & Central Basin Fin. Auth. Rev., AMBAC,
   AAA       1,665      6.125%, 8/01/02+ .............................................    No Opt. Call      1,828,136
   AAA         870      6.125%, 8/01/08 ..............................................    08/02 at 102        955,243
   AAA         925      6.125%, 8/01/09 ..............................................    08/02 at 102      1,015,631
   AAA       2,160   West Sacramento Fin. Auth. Rev., Wtr. Sys. Impvt.,
                        5.25%, 8/01/08, FGIC .........................................    08/02 at 102      2,242,253
                                                                                                         ------------
                     TOTAL LONG-TERM INVESTMENTS (cost $222,381,800) .................                    246,697,193
                                                                                                         ------------
                     SHORT-TERM INVESTMENTS** -- 1.0%
  A-1+         800   California Hlth. Facs. Fin. Auth. Rev., Ser. A, FRDD,
                        5.00%, 1/02/98 ...............................................                        800,000
  A-1+         100   California Poll. Ctrl. Fin. Auth. Rev., Proj. B, FRDD,
                        4.90%, 1/02/98 ...............................................                        100,000
  A-1+         100   Irvine Ranch Wtr. Dist., FRDD, 5.00%, 1/02/98 ...................                        100,000
  A-1+         635   Tustin, Impvt. BD Act 1915, Dist No. 95-2-A, FRDD,
                        5.00%, 1/02/98 ...............................................                        635,000
                                                                                                         ------------
                     TOTAL SHORT-TERM INVESTMENTS (cost $1,635,000) ..................                      1,635,000
                                                                                                         ------------
                     TOTAL INVESTMENTS-- 143.0% (cost $224,016,800) ..................                    248,332,193
                     Other assets in excess of liabilities-- 1.9% ....................                      3,378,417
                     Liquidation value of preferred stock-- (44.9%) ..................                    (78,000,000)
                                                                                                         ------------
                     NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS-- 100% .............                   $173,710,610
                                                                                                         ============
</TABLE>


- ----------
  * Rating using the higher of Standard & Poor's, Moody's or Fitch's.
 ** For  purposes  of  amortized  cost  valuation,  the  maturity  date of these
    instruments  is  considered  to be the  later of the next  date on which the
    security  can be  redeemed  at par or the  next  date on  which  the rate of
    interest is adjusted.
  + This bond is prerefunded. See glossary for definition.
 ++ Option call provisions: date (month/year) and price of the earliest optional
    call or  redemption. There may be other call provisions at varying prices at
    later dates.

     ---------------------------------------------------------------------------
           KEY TO ABBREVIATIONS
                  AMBAC  -- American Municipal Bond Assurance Corporation
                  C.O.P. -- Certificate of Participation
                  FGIC   -- Financial Guaranty Insurance Company
                  FRDD   -- Floating Rate Daily Demand
                  FSA    -- Financial Security Assurance
                  G.O.   -- General Obligation Bond
                  MBIA   -- Municipal Bond Insurance Association
     ---------------------------------------------------------------------------




                       See Notes to Financial Statements.

                                       6


<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INSURED
MUNICIPAL 2008 TERM TRUST INC.
STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 1997
- --------------------------------------------------------------------------------

ASSETS
Investments, at value (cost $224,016,800)
  (Note 1) ..............................  $ 248,332,193
Interest receivable .....................      3,698,997
Cash ....................................         40,025
Other assets ............................         22,335
                                           -------------
                                             252,093,550
                                           -------------

LIABILITIES
Dividends payable-preferred stock .......         75,326
Advisory fee payable (Note 2) ...........         73,260
Administration fee payable (Note 2) .....         20,932
Other accrued expenses ..................        213,422
                                           -------------
                                                 382,940
                                           -------------
NET INVESTMENT ASSETS ...................  $ 251,710,610
                                           =============
Net investment assets were comprised of:
  Common Stock:
    Par value (Note 4) ..................      $ 104,071
    Paid-in capital in excess of par ....    144,619,829
  Preferred Stock (Note 4) ..............     78,000,000
                                           -------------
                                             222,723,900
Undistributed net investment income .....      4,668,818
Accumulated net realized gain ...........          2,499
Net unrealized appreciation .............     24,315,393
                                           -------------
Net investment assets, December 31, 1997   $ 251,710,610
                                           =============
Net assets applicable to common
  shareholders ..........................  $ 173,710,610
                                           =============
Net asset value per common share:
  ($173,710,610 / 10,407,093 shares of
  common stock issued and outstanding) ..         $16.69
                                                  ======

- --------------------------------------------------------------------------------
THE BLACKROCKCALIFORNIA INSURED
MUNICIPAL 2008 TERMTRUST INC.
STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 1997
- --------------------------------------------------------------------------------

NET INVESTMENT INCOME
Income
  Interest and discount earned ..........    $13,586,043
                                             -----------
Expenses
  Investment advisory ...................        855,107
  Administration ........................        244,316
  Auction agent .........................        215,000
  Custodian .............................         67,000
  Reports to shareholders ...............         47,000
  Directors .............................         37,000
  Audit .................................         28,000
  Transfer agent ........................         18,000
  Legal .................................         11,000
  Miscellaneous .........................        120,245
                                             -----------
    Total expenses ......................      1,642,668
                                             -----------
Net investment income ...................     11,943,375
                                             -----------

UNREALIZED GAIN ON
INVESTMENTS (NOTE 3)
  Net change in unrealized appreciation on
    investments .........................      7,258,145
                                             -----------

NET INCREASE IN NET INVESTMENT
 ASSETS RESULTING FROM OPERATIONS .......    $19,201,520
                                             ===========






                       See Notes to Financial Statements.

                                       7


<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
STATEMENTS OF CHANGES IN
NET INVESTMENT ASSETS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                                              YEAR ENDED DECEMBER 31,
                                                                                             ------------------------
                                                                                               1997           1996
                                                                                             ----------   ------------
<S>                                                                                        <C>           <C>          
INCREASE (DECREASE) IN NET INVESTMENT ASSETS
OPERATIONS:
  Net investment income ...............................................................    $ 11,943,375  $ 11,500,629
  Net realized gain on investments ....................................................              --       149,344
  Net change in unrealized appreciation (depreciation) on investments .................       7,258,145    (1,762,159)
                                                                                           ------------  ------------
    Net increase in net investment assets resulting from operations ...................      19,201,520     9,887,814
                                                                                           ------------  ------------
DIVIDENDS AND DISTRIBUTIONS:
  To common shareholders from net investment income ...................................      (8,039,350)   (7,980,442)
  To common shareholders from net realized gain on investments ........................              --       (45,406)
  To common shareholders in excess of net realized gain on investments ................              --       (13,529)
  To preferred shareholders from net investment income ................................      (2,490,040)   (2,510,203)
  To preferred shareholders from net realized gain on investments .....................              --       (14,102)
  To preferred shareholders in excess of net realized gain on investments .............              --        (4,196)
                                                                                           ------------  ------------
    Total dividends and distributions .................................................     (10,529,390)  (10,567,878)
                                                                                           ------------  ------------
        Total increase (decrease) .....................................................       8,672,130      (680,064)

NET INVESTMENT ASSETS
Beginning of year .....................................................................     243,038,480   243,718,544
                                                                                           ------------  ------------
End of year ...........................................................................    $251,710,610  $243,038,480
                                                                                           ============  ============

</TABLE>



                       See Notes to Financial Statements.

                                       8


<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCKCALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>

                                                                           YEAR ENDED DECEMBER 31,
                                                            ------------------------------------------------------
                                                              1997          1996        1995      1994      1993
                                                             ------        ------      ------    ------    ------
<S>                                                        <C>         <C>        <C>         <C>        <C>
PER COMMON SHARE OPERATING
   PERFORMANCE:
Net asset value, beginning of the year ..................  $   15.86  $   15.92    $  13.66   $  16.09   $   14.18
                                                           ---------   --------     -------    -------    --------
   Net investment income ................................       1.15       1.11        1.12       1.12        1.14
   Net realized and unrealized gain (loss)
        on investments ..................................       0.69      (0.16)       2.27      (2.48)       1.81
                                                           ---------   --------     -------    -------    --------
Net increase (decrease) from investment
        operations ......................................       1.84       0.95        3.39      (1.36)       2.95
                                                           ---------   --------     -------    -------    --------
Dividends from net investment income to:
   Preferred shareholders ...............................      (0.24)    (0.24)       (0.28)     (0.21)      (0.18)
   Common shareholders ..................................      (0.77)    (0.77)       (0.85)     (0.86)      (0.85)
Distributions from net realized gain on investments to:
   Preferred shareholders ...............................          --        **          --         --          **
   Common shareholders ..................................          --        **          --         --       (0.01)
Distributions in excess of net realized gain on
   investments to:
   Preferred shareholders ...............................          --        **          **         --          --
   Common shareholders ..................................          --        **          **         --          --
                                                           ---------   --------     -------    -------    --------
Total dividends and distributions .......................      (1.01)     (1.01)      (1.13)     (1.07)      (1.04)
                                                           ---------   --------     -------    -------    --------
Capital charge with respect to issuance
   of shares ............................................         --         --          --       ****          --
                                                           ---------   --------     -------    -------    --------
Net asset value, end of year* ...........................  $   16.69   $  15.86    $  15.92  $   13.66    $  16.09
                                                           =========   ========     =======    =======    ========
Market value, end of year* ..............................    $ 15.25   $ 14.625    $ 13.625  $   12.00    $ 15.125
                                                           =========   ========     =======    =======    ========
TOTAL INVESTMENT RETURN+ ................................      9.90%     13.67%      20.57%   (15.59)%      14.79%
                                                           =========   ========     =======    =======    ========
RATIOS TO AVERAGE NET ASSETS OF COMMON
  SHAREHOLDERS:++
Expenses ................................................      0.98%      1.03%       1.02%      1.08%       0.96%
Net investment income before preferred stock
 dividends ..............................................      7.11%      7.11%       7.46%      7.70%       7.33%
Preferred stock dividends ...............................      1.48%      1.56%       1.85%      1.46%       1.15%
Net investment income available to common shareholders ..      5.63%      5.55%       5.61%      6.24%       6.18%
SUPPLEMENTAL DATA:
Average net assets of common shareholders
 (in thousands) .........................................   $167,984   $161,839    $156,774   $151,669    $160,350
Portfolio turnover ......................................         0%         3%         13%        17%          8%
Net assets of common shareholders, end of period
 (in thousands) .........................................   $173,711   $165,038    $165,719   $142,165    $167,439
Preferred stock outstanding (in thousands) ..............   $ 78,000   $ 78,000    $ 78,000   $ 78,000    $ 78,000
Asset coverage per share of preferred stock,
 end of year# ...........................................   $ 80,677   $ 77,897    $ 78,115   $141,131    $157,333

</TABLE>


- ----------
   * Net asset value and market value are published in THE WALL STREET  JOURNAL
     each Monday.
  ** Actual  amount paid from net  realized  gain on  investments  to  preferred
     shareholders was $0.00136 and $0.00344 per common share for the years ended
     December 31, 1996 and 1993,  respectively,  and to common  shareholders was
     $0.004363  per share for the year ended  December 31, 1996.  Actual  amount
     paid  in  excess  of  net  realized  gain  on   investments   to  preferred
     shareholders  was $0.0004 and $0.0007 per common  share for the years ended
     December 31, 1996 and 1995,  respectively,  and to common  shareholders was
     $0.0013 and $0.0021  per share for the years  ended  December  31, 1996 and
     1995, respectively.
 *** Actual amount was $0.00006 per common share.
   # A stock split occurred on July 24, 1995 (Note 4).
   + Total investment  return is calculated  assuming a purchase of common stock
     at the  current  market  price on the first  day and a sale at the  current
     market price on the last day of the period. Dividends and distributions, if
     any,  are assumed for purposes of this  calculation,  to be  reinvested  at
     prices  obtained  under  the  Trust's  dividend  reinvestment  plan.  Total
     investment return does not reflect brokerage commissions.
  ++ Ratios  calculated  on the basis of income and expenses  applicable to both
     the common and preferred shares, and preferred stock dividends, relative to
     the average net assets of common shareholders.

The information  above represents the audited  operating  performance data for a
share of common stock outstanding,  total investment  return,  ratios to average
net assets and other supplemental data for the year indicated.  This information
has been determined based upon financial  information  provided in the financial
statements and market value data for Trust's shares.







                       See Notes to Financial Statements.

                                       9



<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------


NOTE 1. ACCOUNTING POLICIES

The BlackRock  California  Insured  Municipal 2008 Term Trust Inc. (the "Trust")
was  organized  in  Maryland on August 7, 1992 as a  non-diversified  closed-end
management  investment company.  The Trust's investment objective is to manage a
non-diversified  portfolio of high quality  securities  that will return $15 per
share to investors on or about December 31, 2008 while providing  current income
exempt from regular  federal and California  State income taxes.  The ability of
issuers of debt  securities  held by the Trust to meet their  obligations may be
affected by economic  developments in the state, a specific  industry or region.
No  assurance  can be  given  that  the  Trust's  investment  objective  will be
achieved.

The following is a summary of significant  accounting  policies  followed by the
Trust.

SECURITIES VALUATION:  Municipal securities  (including  commitments to purchase
such  securities  on a  "when-issued"  basis)  are valued on the basis of prices
provided  by  a  pricing  service  which  uses   information   with  respect  to
transactions  in bonds,  quotations  from bond dealers,  market  transactions in
comparable   securities  and  various   relationships   between   securities  in
determining values. Any securities or other assets for which such current market
quotations  are not readily  available are valued at fair value as determined in
good faith under procedures established by and under the general supervision and
responsibility of the Trust's Board of Directors.

   Short-term securities which mature in 60 days or less are valued at amortized
cost,  if their  term to  maturity  from  date of  purchase  is 60 days or less.
Short-term securities with a term to maturity greater than 60 days from the date
of purchase are valued at current market quotations until maturity.

SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME:  Securities  transactions  are
recorded  on the trade date.  Realized  gains and losses are  calculated  on the
identified cost basis.  Interest income is recorded on the accrual basis and the
Trust  amortizes  premium and accretes  original  issue  discount on  securities
purchased using the interest method.

FEDERAL  INCOME  TAXES:  It is the  Trust's  intention  to  continue to meet the
requirements  of the Internal  Revenue Code  applicable to regulated  investment
companies  and to distribute  sufficient  net income to  shareholders.  For this
reason and because  substantially  all of the Trust's  gross income  consists of
tax-exempt interest, no Federal income tax provision is required.

DIVIDENDS  AND  DISTRIBUTIONS:   The  Trust  declares  and  pays  dividends  and
distributions to common  shareholders  monthly from net investment  income.  Net
capital  gains,  if any,  in excess  of loss  carryforwards  may be  distributed
annually.  Dividends and  distributions  are recorded on the  ex-dividend  date.
Dividends and distributions to preferred shareholders are accrued and determined
as described in Note 4.

ESTIMATES:  The preparation of financial statements in conformity with generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.

NOTE 2. AGREEMENTS

The  Trust  has  an  Investment  Advisory  Agreement  with  BlackRock  Financial
Management  Inc. (the  "Adviser"),  a wholly-owned  corporate  subsidiary of PNC
Asset  Management  Group,  Inc., the holding company for PNC's asset  management
businesses and an Administration Agreement with Princeton  Administrators,  L.P.
(the  "Administrator"),  an indirect wholly-owned  subsidiary of Merrill Lynch &
Co., Inc.

   The  investment  advisory  fee paid to the  Adviser  is  computed  weekly and
payable  monthly at an annual  rate of 0.35% of the Trust's  average  weekly net
investment  assets.  The  administration  fee paid to the  Administrator is also
computed  weekly and  payable  monthly at an annual rate of 0.10% of the Trust's
average weekly net investment assets.

   Pursuant to the agreements,  the Adviser provides  continuous  supervision of
the investment  portfolio and pays the compensation of officers of the Trust who
are  affiliated  persons of the Adviser.  The  Administrator  pays occupancy and
certain  clerical and accounting  costs of the Trust.  The Trust bears all other
costs and expenses.

NOTE 3. PORTFOLIO

For the year ended  December  31,  1997,  the Trust,  other than for  short-term
investments, had no purchases or sales.


                                       10


<PAGE>


The federal income tax basis of the Trust's investments at December 31, 1997 was
substantially  the same as the basis for financial  reporting,  and accordingly,
unrealized appreciation was $24,315,393 (on both a gross and net basis).


NOTE 4. CAPITAL 

There are 200 million shares of $.01 par value common stock  authorized.  Of the
10,407,093  common shares  outstanding  at December 31, 1997,  the Adviser owned
7,093  shares.  As of  December  31,  1997,  there were 3,120  preferred  shares
outstanding as follows: Series W28--1,560 and Series W7--1,560.

   The Trust may classify or reclassify any unissued shares of common stock into
one or more  series  of  preferred  stock.  On  November  23,  1992,  the  Trust
reclassified  1,560 shares of common stock and issued 2 series of Auction Market
Preferred Stock ("Preferred Stock") as follows:  Series W28--780 shares,  Series
W7--780 shares. The Preferred Stock has a liquidation value of $25,000 per share
plus any accumulated but unpaid dividends. On May 16, 1995 shareholders approved
a proposal to split each share of the Trust's  Auction Rate Municipal  Preferred
Stock  into two  shares  and  simultaneously  reduce  each  share's  liquidation
preference from $50,000 to $25,000 plus any  accumulated  but unpaid  dividends.
The stock split occurred on July 24, 1995.

   Dividends on Series W7 are  cumulative  at a rate which is reset every 7 days
based on the results of an auction.  Dividends on Series W28 are also cumulative
at a rate  which is reset  every 28 days  based on the  results  of an  auction.
Dividend  rates ranged from 2.30% to 4.125%  during the year ended  December 31,
1997.

   The Trust may not declare dividends or make other  distributions on shares of
common  stock or purchase  any such  shares if, at the time of the  declaration,
distribution  or  purchase,  asset  coverage  with  respect  to the  outstanding
Preferred Stock would be less than 200%.

   The Preferred  Stock is redeemable at the option of the Trust, in whole or in
part, on any dividend  payment date at $25,000 per share plus any accumulated or
unpaid dividends whether or not declared. The Preferred Stock is also subject to
mandatory  redemption  at  $25,000  per  share  plus any  accumulated  or unpaid
dividends,  whether or not  declared  if certain  requirements  relating  to the
composition  of the  assets  and  liabilities  of the  Trust as set forth in the
Articles of Incorporation are not satisfied.

   The holders of  Preferred  Stock have voting  rights  equal to the holders of
common stock (one vote per share) and will vote  together with holders of shares
of common stock as a single class. However,  holders of Preferred Stock are also
entitled to elect two of the Trust's  directors.  In  addition,  the  Investment
Company Act of 1940 requires that along with approval by stockholders that might
otherwise  be  required,  the  approval  of the  holders  of a  majority  of any
outstanding  preferred shares, voting separately as a class would be required to
(a) adopt any plan of  reorganization  that would adversely affect the Preferred
Stock, and (b) take any action requiring a vote of security holders,  including,
among other  things,  changes in the Trust's  subclassification  as a closed-end
investment company or changes in its fundamental investment restrictions.

NOTE 5. DIVIDENDS 

Subsequent to December 31, 1997,  the Board of Directors of the Trust declared a
dividend  from  undistributed  earnings of $0.064375  per common  share  payable
January 31, 1998 to shareholders of record on January 15, 1998.

   For the period  January 1, 1998 to January 31,  1998,  dividends  declared on
Preferred Stock totalled $230,094 in aggregate for the two outstanding Preferred
Stock series.





                                       11


<PAGE>


- --------------------------------------------------------------------------------
         THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
                         REPORT OF INDEPENDENT AUDITORS
- --------------------------------------------------------------------------------

The Shareholders and Board of Directors of
The BlackRock California Insured Municipal 2008 Term Trust Inc.:

We have audited the accompanying statement of assets and liabilities,  including
the portfolio of investments, of The BlackRock California Insured Municipal 2008
Term  Trust  Inc.,  as of  December  31,  1997  and the  related  statements  of
operations for the year then ended, and of changes in net investment  assets for
each of the two years in the period then ended, and the financial highlights for
each of the five years in the period then ended. These financial  statements and
financial  highlights  are the  responsibility  of the Trust's  management.  Our
responsibility  is to  express  an opinion  on these  financial  statements  and
financial highlights based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  financial  statements  and  financial
highlights are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements. Our procedures included confirmation of securities owned at December
31, 1997, by correspondence with the custodian. An audit also includes assessing
the accounting principles used and significant estimates made by management,  as
well as evaluating the overall financial statement presentation. We believe that
our audits provide a reasonable basis for our opinion.

In our opinion,  such  financial  statements  and financial  highlights  present
fairly,  in all  material  respects,  the  financial  position of The  BlackRock
California  Insured  Municipal 2008 Term Trust Inc. as of December 31, 1997, and
the results of its operations,  the changes in its net investment assets and the
financial  highlights  for the respective  stated  periods,  in conformity  with
generally accepted accounting principles.







/s/
- -------------------------
Deloitte & Touche LLP

New York, New York
February 13, 1998






                                       12


<PAGE>


- --------------------------------------------------------------------------------
             THE BLACKROCK CALIFORNIA MUNICIPAL 2008 TERM TRUST INC.
                                 TAX INFORMATION
- --------------------------------------------------------------------------------

      We are required by the Internal  revenue Code to advise you within 60 days
of the  Trust's  fiscal  year  end  (December  31,  1997)  as to  the  federally
tax-exempt   interest  dividends  received  by  you  during  such  fiscal  year.
Accordingly, we are advising you that all dividends paid by the Trust during the
fiscal year were federally tax-exempt interest dividends.

- --------------------------------------------------------------------------------
                           DIVIDEND REINVESTMENT PLAN
- --------------------------------------------------------------------------------

      Pursuant  to  the  Trust's  Dividend   Reinvestment   Plan  (the  "Plan"),
shareholders may elect to have all  distributions of dividends and capital gains
automatically reinvested by State Street Bank & Trust Company (the "Plan Agent")
in Trust shares.  Shareholders  who do not  participate in the Plan will receive
all distributions in cash paid by check in United States dollars mailed directly
to the  shareholders  of record  (or if the  shares  are held in street or other
nominee  name,  then to the nominee) by the  custodian,  as dividend  disbursing
agent.

      The Plan Agent serves as agent for the shareholders in  administering  the
Plan.  After the Trust  declares a dividend or determines to make a capital gain
distribution,  the Plan Agent will, as agent for the  participants,  receive the
cash  payment and use it to buy Trust  shares in the open market on the New York
Stock Exchange for the participants' accounts.
The Trust will not issue shares under the Plan.

      Participants in the Plan may withdraw from the Plan upon written notice to
the Plan Agent and will receive  certificates  for whole Trust shares and a cash
payment for any fraction of a Trust share.

      The Plan Agent's fees for the  handling of the  reinvestment  of dividends
and distributions will be paid by the Trust.  However, each participant will pay
a pro rata share of  brokerage  commissions  incurred  with  respect to the Plan
Agent's open market  purchases in connection with the  reinvestment of dividends
and  distributions.  The automatic  reinvestment of dividends and  distributions
will not relieve  participants  of any federal income tax that may be payable on
such dividends or distributions.

      Experience  under  the Plan  may  indicate  that  changes  are  desirable.
Accordingly,  the Trust  reserves  the right to amend or  terminate  the Plan as
applied to any dividend or distribution paid subsequent to written notice of the
change sent to all  shareholders of the Trust at least 90 days before the record
date  for the  dividend  or  distribution.  The  Plan  also  may be  amended  or
terminated  by the Plan  Agent  upon at least 90  days'  written  notice  to all
shareholders  of the Trust.  All  correspondence  concerning  the Plan should be
directed  to the Plan Agent at (800)  699-1BFM.  The  address is on the front of
this report.

- --------------------------------------------------------------------------------
                             ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------

      There have been no material changes in the Trust's  investment  objectives
or policies that have not been approved by the shareholders.  There have been no
changes in the  Trust's  charter or  by-laws.  There have been no changes in the
principal risk factors  associated with investment in the Trust. There have been
no changes in the  persons  who are  primarily  responsible  for the  day-to-day
management of the Trust's portfolio.



                                       13

<PAGE>

- --------------------------------------------------------------------------------
      THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

THE TRUST'S INVESTMENT OBJECTIVE
The  Trust's  investment  objective  is to provide  current  income  exempt from
regular  federal  and  California  income  tax and to return  $15 per share (the
initial  public  offering price per share) to investors on or about December 31,
2008.

WHO MANAGES THE TRUST?
BlackRock  Financial  Management,   Inc.  (BlackRock  or  the  Adviser)  is  the
investment adviser for the Trust.  BlackRock is a registered  investment adviser
specializing  in  fixed  income   securities.   Currently,   BlackRock   manages
approximately $55 billion of assets across the government,  mortgage,  corporate
and municipal  sectors.  These assets are managed on behalf of institutional and
individual  investors in 21 closed-end  funds traded on the New York or American
Stock Exchanges,  several open-end funds and separate accounts for more than 125
clients  in the U.S.  and  overseas.  BlackRock  is a  subsidiary  of PNC  Asset
Management  Group,  Inc.  which is a  division  of PNC  Bank,  N.A.,  one of the
nation's largest banking organizations.

WHAT CAN THE TRUST INVEST IN?
The Trust  intends  to invest  at least  80% of its total  assets in  California
municipal  obligations  insured  as to  the  timely  payment  of  principal  and
interest.  The Trust  may  invest up to 20% in  uninsured  California  municipal
obligations  which are rated Aaa by Moody's or AAA by S&P, or are  determined by
the Adviser to be of comparable credit quality  (guaranteed,  escrowed or backed
in trust).

WHAT IS THE ADVISER'S INVESTMENT STRATEGY?
The Adviser will seek to meet the Trust's  investment  objective by managing the
assets of the Trust so as to return the initial  offering  price ($15 per share)
at maturity.  The Trust will implement a conservative strategy that will seek to
closely match the maturity of the assets of the portfolio with the future return
of the  initial  investment  at the end of  2008.  At the  Trust's  termination,
BlackRock expects that the value of the securities which have matured,  combined
with the value of the  securities  that are sold,  if any, will be sufficient to
return the initial offering price to investors. On a continuous basis, the Trust
will seek its  objective  by  actively  managing  its  portfolio  of  California
municipal  obligations  and  retaining a small  amount of income  each year.  In
addition to seeking the return of the initial  offering price,  the Adviser also
seeks to provide  current  income  exempt from  regular  federal and  California
income tax to  investors.  The  portfolio  managers will attempt to achieve this
objective by investing in securities that provide competitive income.

In addition,  leverage will be used (in an amount up to 35% of the total assets)
to enhance the income of the portfolio.  In order to maintain competitive yields
as the Trust approaches maturity and depending on market conditions, the Adviser
will attempt to purchase  securities with call protection or maturities as close
to the Trust's maturity date as possible. Securities with call protection should
provide the portfolio with some degree of protection  against  reinvestment risk
during times of lower prevailing  interest rates. Since the Trust's primary goal
is to return the initial  offering  price at  maturity,  any cash that the Trust
receives  prior to its  maturity  date will be  reinvested  in  securities  with
maturities  which  coincide  with  the  remaining  term  of  the  Trust.   Since
shorter-term securities typically yield less than longer-term  securities,  this
strategy will likely result in a decline in the Trust's  income over time. It is
important to note that the Trust will be managed so as to preserve the integrity
of the return of the initial offering price. If market conditions,  such as high
interest rate volatility,  force a choice between current income and risking the
return  of the  initial  offering  price,  it is likely  that the  return of the
initial offering price will be emphasized.

HOW ARE THE TRUST'S SHARES PURCHASED AND SOLD?
DOES THE TRUST PAY DIVIDENDS REGULARLY?
The  Trust's  shares are traded on the New York Stock  Exchange  which  provides
investors with  liquidity on a daily basis.  Orders to buy or sell shares of the
Trust must be placed through a registered broker or financial advisor. The Trust
pays monthly  dividends which are typically paid on the last business day of the
month. For shares held in the shareholder's name, dividends may be reinvested in
additional shares of the Trust through the Trust's transfer agent,  State Street
Bank and Trust Company. Investors who wish to hold shares in a brokerage account
should check with their financial  advisor to determine  whether their brokerage
firm offers dividend reinvestment services.



                                       14

<PAGE>


LEVERAGE CONSIDERATIONS IN A TERM TRUST

Under current  market  conditions,  leverage  increases the income earned by the
Trust.  The Trust employs leverage  primarily  through the issuance of preferred
stock.  Leverage  permits  the Trust to  borrow  money at  short-term  rates and
reinvest that money in longer-term  assets which typically offer higher interest
rates.  The  difference  between the cost of the  borrowed  funds and the income
earned on the proceeds that are invested in longer term assets is the benefit to
the Trust from  leverage.  In general,  the portfolio is typically  leveraged at
approximately  35% of total  asset.

Leverage also increases the duration (or price  volatility of the net assets) of
the Trust,  which can improve the  performance  of the Trust in a declining rate
environment,  but can cause net  assets to decline  faster  than the market in a
rapidly rising rate environment.  BlackRock's  portfolio  managers  continuously
monitor and  regularly  review the  Trust's  use of  leverage  and the Trust may
reduce,  or unwind,  the amount of leverage  employed should BlackRock  consider
that reduction to be in the best interests of the shareholders.

SPECIAL CONSIDERATIONS AND RISK FACTORS RELEVANT TO TERM TRUSTS

THE TRUST IS  INTENDED  TO BE A  LONG-TERM  INVESTMENT  AND IS NOT A  SHORT-TERM
TRADING VEHICLE.

RETURN OF INITIAL  INVESTMENT.  Although the objective of the Trust is to return
its initial offering price upon termination, there can be no assurance that this
objective will be achieved.

DIVIDEND  CONSIDERATIONS.  The income and dividends paid by the Trust are likely
to  decline  to some  extent  over the term of the Trust due to the  anticipated
shortening of the dollar-weighted average maturity of the Trust's assets.

LEVERAGE.  The Trust utilizes  leverage  through the issuance of preferred stock
which involves  special risks.  The Trust's net asset value and market value may
be more volatile due to its use of leverage.

MARKET PRICE OF SHARES.  The shares of closed-end  investment  companies such as
the Trust trade on the New York Stock  Exchange  (NYSE symbol:  BFC) and as such
are subject to supply and demand influences.  As a result, shares may trade at a
discount or a premium to their net asset value.

ILLIQUID  SECURITIES.  The Trust may  invest in  securities  that are  illiquid,
although  under current  market  conditions the Trust expects to do so to only a
limited extent. Investing in these securities involves special risks.

ANTITAKEOVER  PROVISIONS.  Certain antitakeover provisions will make a change in
the Trust's  business or management  more difficult  without the approval of the
Trust's Board of Directors and may have the effect of depriving  shareholders of
an  opportunity  to sell their shares at a premium above the  prevailing  market
price.

MUNICIPAL OBLIGATIONS.  Municipal obligations include debt obligations issued by
states,  cities, and local authorities,  and possessions and certain territories
of the United States to obtain funds for various public purposes,  including the
construction of public  facilities,  the refinancing of outstanding  obligations
and the obtaining of funds for general operating expenses and for loans to other
public  institutions  and  facilities.  The value of municipal  debt  securities
generally  varies  inversely with changes in prevailing  market  interest rates.
Depending  on the amount of call  protection  that the  securities  in the Trust
have, the Trust may be subject to certain  reinvestment risks in environments of
declining interest rates.

ALTERNATIVE  MINIMUM TAX (AMT).  The Trust may invest in  securities  subject to
AMT. The Trust currently holds no securities that are subject to AMT.





                                       15



<PAGE>


- -------------------------------------------------------------------------------
         THE BLACKROCK CALIFORNIA INSURED MUNICIPAL 2008 TERM TRUST INC.
                                    GLOSSARY
- ------------------------------------------------------------------------------

CLOSED-END FUND:        Investment vehicle which initially offers a fixed number
                        of  shares  and  trades  on a stock  exchange.  The fund
                        invests in a portfolio of securities in accordance  with
                        its stated investment objectives and policies.

DISCOUNT:               When a fund's net asset value is greater  than its stock
                        price, the fund is said to be trading at a discount.

DIVIDEND:               Income  generated  by  securities  in  a  portfolio  and
                        distributed to shareholders after deduction of expenses.
                        This  Trust  declares  and pays  dividends  on a monthly
                        basis.

DIVIDEND REINVESTMENT:  Shareholders may have all distributions of dividends and
                        capital gains  automatically  reinvested into additional
                        shares of the Trust.

MARKET PRICE:           Price per share of a security  trading in the  secondary
                        market.  For a  closed-end  fund,  this is the  price at
                        which  one  share  of  the  fund  trades  on  the  stock
                        exchange.  If you were to buy or sell shares,  you would
                        pay or receive the market price.

NET ASSET VALUE (NAV):  Net  asset  value  is  the  total  market  value  of all
                        securities  and other  assets  held by the  Trust,  plus
                        income accrued on its investment,  minus any liabilities
                        including accrued expenses, dividend by the total number
                        of outstanding  shares.  It is the underlying value of a
                        single  share on a given  day.  Net asset  value for the
                        Trust is calculated  weekly and published in BARRON'S on
                        Saturday and THE WALL STREET JOURNAL on Monday.

PREMIUM:                When a fund's  stock price is greater than its net asset
                        value, the fund is said to be trading at a premium.

PRE-REFUNDED BONDS:     These   securities  are   collateralized   by  the  U.S.
                        Government  securities  which are held in escrow and are
                        used to pay  principal  and  interest on the  tax-exempt
                        issue  and to  retire  the  bond  in  full  at the  date
                        indicated, typically at a premium to par.






                                       16


<PAGE>


- --------------------------------------------------------------------------------
                      BLACKROCK FINANCIAL MANAGEMENT, INC.
                           SUMMARY OF CLOSED-END FUNDS
- --------------------------------------------------------------------------------




TAXABLE TRUSTS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>

                                                                   STOCK      MATURITY
PERPETUAL TRUSTS                                                  SYMBOL        DATE
                                                                  ------       ------
<S>                                                                <C>          <C>
The BlackRock Income Trust Inc. .................................  BKT           N/A
The BlackRock North American Government Income
    Trust Inc. ..................................................  BNA           N/A

TERM TRUSTS
The BlackRock 1998 Term Trust Inc. ..............................  BBT          12/98
The BlackRock 1999 Term Trust Inc. ..............................  BNN          12/99
The BlackRock Target Term Trust Inc. ............................  BTT          12/00
The BlackRock 2001 Term Trust Inc. ..............................  BLK          06/01
The BlackRock Strategic Term Trust Inc. .........................  BGT          12/02
The BlackRock Investment Quality Term Trust Inc. ................  BQT          12/04
The BlackRock Advantage Term Trust Inc. .........................  BAT          12/05
The BlackRock Broad Investment Grade 2009 Term Trust Inc. .......  BCT          12/09


TAX-EXEMPT TRUSTS
- --------------------------------------------------------------------------------

<CAPTION>

                                                                   STOCK      MATURITY
PERPETUAL TRUSTS                                                  SYMBOL        DATE
                                                                  ------       ------
<S>                                                                <C>          <C>
The BlackRock Investment Quality Municipal Trust Inc. ...........  BKN           N/A
The BlackRock California Investment Quality Municipal
   Trust Inc. ...................................................  RAA           N/A
The BlackRock Florida Investment Quality Municipal Trust ........  RFA           N/A
The BlackRock New Jersey Investment Quality Municipal
   Trust Inc. ...................................................  RNJ           N/A
The BlackRock New York Investment Quality Municipal
   Trust Inc. ...................................................  RNY           N/A

TERM TRUSTS
The BlackRock Municipal Target Term Trust Inc. ..................  BMN          12/06
The BlackRock Insured Municipal 2008 Term Trust Inc. ............  BRM          12/08
The BlackRock California Insured Municipal 2008 Term
   Trust Inc. ...................................................  BFC          12/08
The BlackRock Florida Insured Municipal 2008 Term Trust .........  BRF          12/08
The BlackRock New York Insured Municipal 2008 Term
   Trust Inc. ...................................................  BLN          12/08
The BlackRock Insured Municipal Term Trust Inc. .................  BMT          12/10

</TABLE>




                      IF YOU WOULD LIKE FURTHER INFORMATION
                         PLEASE CALL BLACKROCK AT (800)
                      227-7BFM (7236) OR CONSULT WITH YOUR
                               FINANCIAL ADVISOR.


                                       17

<PAGE>

=============
  BlackRock  
=============

DIRECTORS
Laurence D. Fink, CHAIRMAN
Andrew F. Brimmer
Richard E. Cavanagh
Kent Dixon
Frank J. Fabozzi
James Grosfeld
James Clayburn La Force, Jr.
Walter F. Mondale
Ralph L. Schlosstein

OFFICERS
Ralph L. Schlosstein, PRESIDENT
Keith T. Anderson, VICE PRESIDENT
Michael C. Huebsch, VICE PRESIDENT
Robert S. Kapito, VICE PRESIDENT
Kevin Klingert, VICE PRESIDENT
Richard M. Shea, VICE PRESIDENT/TAX
Henry Gabbay, TREASURER
James Kong, ASSISTANT TREASURER
Karen H. Sabath, SECRETARY

INVESTMENT ADVISER
BlackRock Financial Management, Inc.
345 Park Avenue
New York, NY 10154
(800) 227-7BFM

ADMINISTRATOR
Princeton Administration, L.P.
P.O.Box 9095
Princeton, NJ 08543-9095
(800) 699-1BFM

CUSTODIAN AND TRANSFER AGENT
State Street Bank and Trust Company
One Heritage Drive
North Quincy,  MA 02171
(800) 669-1BFM

AUCTION AGENT
Bankers Trust Company
Four Albany Street
New York, NY 10006

INDEPENDENT AUDITORS
Deloitte & Touche LLP Two
World Financial Center
New York, NY 10281-1434

LEGAL COUNSEL
Skadden, Arps, Slate, Meagher & Flom LLP
919 Third Avenue
New York, NY 10022

   This report is for shareholder information. This is not a prospectus intended
for use in the purchase or sale of any securities.


                        THE BLACKROCK CALIFORNIA INSURED
                         MUNICIPAL 2008 TERM TRUST INC.
                       c/o Princeton Administration, L.P.
                                  P.O.Box 9095
                            Princeton, NJ 08543-9095
                                 (800) 699-1BFM

                                                                    09247G 10 8
                                                                    09247G 20 7
                                                                    09247G 30 8
==============
The BlackRock 
==============

California Insured
Municipal 2008
Term Trust Inc.
=======================
Annual Report
December 31, 1997



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