BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC
N-30D, 1997-12-29
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- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
                          ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------




                                                               November 30, 1997



Dear Trust Shareholder:

       U.S.  fixed income  investors have been rewarded with solid total returns
over the past twelve months, as moderate economic growth and low inflation drove
Treasury yields below year-end 1996 levels by October 31, 1997.

       The economy has shown some signs of slowing,  which BlackRock expects may
persist as early  indicators  suggest that holiday  spending may be tepid. We do
not see  immediate  signs  of  inflationary  pressure  nor do we  anticipate  an
imminent change in monetary policy by the Federal Reserve. Our long-term outlook
for the bond market remains  optimistic,  based on the  fundamentally  favorable
backdrop  of slower  economic  growth,  low  inflation  and  declining  Treasury
borrowing.

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




                                       1

<PAGE>


                                                               November 30, 1997

Dear Shareholder:


       We are pleased to present the annual report for The BlackRock  California
Investment  Quality Municipal Trust Inc. ("the Trust") for the fiscal year ended
October 31, 1997. We would like to take this  opportunity  to review the Trust's
stock price and net asset value (NAV) performance, summarize market developments
and discuss recent portfolio management activity.

       The Trust is a  non-diversified,  actively  managed  closed-end bond fund
whose shares are traded on the American  Stock  Exchange under the symbol "RAA".
The Trust's  investment  objective  is to provide  high  current  income that is
exempt from regular  federal and  California  income taxes  consistent  with the
preservation of capital.  The Trust seeks to achieve this objective by investing
in  investment  grade  (rated  "AAA"  to "BBB" by a major  rating  agency  or of
equivalent  quality)  municipal debt securities  issued by local  municipalities
throughout California.

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

<TABLE>
<CAPTION>

                        --------------------------------------------------------
                         10/31/97            10/31/96             CHANGE               HIGH                 LOW
- --------------------------------------------------------------------------------
<S>                       <C>                 <C>                 <C>                 <C>                 <C>   
STOCK PRICE               $15.00              $13.50              11.11%              $15.00              $13.50
- --------------------------------------------------------------------------------
NET ASSET VALUE (NAV)     $14.77              $14.20               4.01%              $14.81              $13.78
- --------------------------------------------------------------------------------
</TABLE>

THE FIXED INCOME MARKETS

       The first half of the Trust's fiscal year was  characterized by increased
concern over potential inflationary pressures.  Bond prices fell and yields rose
between  mid-December 1996 and mid-April 1997, as economic data indicated a very
strong  economy.  In an effort to subdue  this  growth and  pre-emptively  fight
inflation,  the Federal Reserve raised the Federal funds rate by 25 basis points
(1/4%)  to 5.50% at  their  March 25 FOMC  policy  meeting.  During  the  second
quarter,  however, signs of more moderate economic growth began to appear. Lower
factory orders, decreased consumer spending and higher inventories,  in addition
to continued benign inflationary forces,  soothed investor fears over inflation.
Accordingly,  the Federal Reserve left interest rates unchanged at their May 20,
July 2 and September 30 policy meetings. U.S. Treasury yields reflected investor
expectations of Federal Reserve policy  activity.  The yield of the 10-year note
rose from a period low of 6.04% in late November 1996 to 6.98% in mid-April 1997
in response to Federal Reserve  Chairman Alan  Greenspan's  warning of excessive
equity market euphoria and in anticipation of a Federal funds rate increase.  As
economic data softened, the yield of the 10-year fell over 100 basis points from
6.98% to close at 5.83% on October 31, 1997.

       The  municipal  bond market,  represented  by the LEHMAN  MUNICIPAL  BOND
INDEX,  posted a total return of 8.50% for the 12 month period ended October 31,
1997,  underperforming the domestic taxable investment grade market (measured by
the LEHMAN  AGGREGATE  INDEX),  which returned  8.89%.  Despite the rally in the
Treasury  market,  demand for  municipals was  relatively  strong,  particularly
during the summer, when nearly $60 billion worth of municipal issues matured and
were  reinvested back into the market.  However,  the decline in Treasury yields
resulted in a significant increase in new municipal supply during September,  as
municipal issuers refunded higher interest bearing  securities and brought lower
yielding issues to market. During October,  municipals experienced their largest
underperformance versus Treasuries during 1997, as they were unable to keep pace
with the global demand for U.S. Treasuries.


                                       2

<PAGE>

       California's economy is recovering across all industries, as increases in
manufacturing,  tourism,  high  technology,  biotechnology  and  small  start-up
businesses have contributed to the state's improving health.  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 budget. Further,  California leads the U.S.
in job growth,  creating  over 1 million  jobs over the last four years.  All of
these  positive  factors  resulted in Fitch raising the State's credit rating to
AA- in September 1997.


THE TRUST'S PORTFOLIO AND INVESTMENT STRATEGY

       The  Trust's  portfolio  is  actively  managed to  diversify  exposure to
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.

       Additionally, the Trust employs leverage at about 35% of total net assets
to enhance its income by borrowing at short term  municipal  rates and investing
the proceeds in longer maturity  issues which 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.  Over the past twelve  months,  the  Federal  Reserve
tightened  monetary  policy by raising short term rates 25 basis points to 5.50%
in March.  Typically,  short term municipal  rates (which  determine the Trust's
borrowing  costs) are  approximately  65% of Treasury  rates.  Accordingly,  the
Trust's cost of leverage modestly increased as a result of the Fed's action.

       The main portfolio  management  theme in the Trust over the past year has
been to take  advantage of narrowing  credit  spreads  between  higher and lower
rated  bonds.  To this end,  the Trust has sold lower  rated  credits  (BBB- and
A-rated  issues) in favor of higher  rated  credits (AA and AAA).  Historically,
lower rated bonds yield significantly more than higher rated bonds to compensate
the investor for taking on a higher probability of default.  Over the past year,
this yield advantage has narrowed to levels that we believe do not pay investors
enough to purchase lower credits.  The Trust's current strategy  emphasizes high
credit quality  non-callable and callable premiums in the 7- to 15-year maturity
range.  Prevailing  municipal  market  conditions  do not reward  investors  for
extending beyond this maturity range.

       The  following  charts  compare the Trust's  current and October 31, 1996
asset composition and credit quality allocations:



                                SECTOR BREAKDOWN

    SECTOR                        OCTOBER 31, 1997            OCTOBER 31, 1996
- --------------------------------------------------------------------------------
  University                              20%                        10%
- --------------------------------------------------------------------------------
  Transportation                          20%                        23%
- --------------------------------------------------------------------------------
  Lease                                   11%                        10%
- --------------------------------------------------------------------------------
  Housing                                 10%                        10%
- --------------------------------------------------------------------------------
  Power                                   10%                        19%
- --------------------------------------------------------------------------------
  City, County & State                     5%                         9%
- --------------------------------------------------------------------------------
  Water & Sewer                            5%                        14%
- --------------------------------------------------------------------------------
  Sales Tax                                5%                         --
- --------------------------------------------------------------------------------
  Student Loans                            5%                         --
- --------------------------------------------------------------------------------
  Industrial                               5%                         --
- --------------------------------------------------------------------------------
  Miscellaneous Revenue                    4%                         5%
- --------------------------------------------------------------------------------

                                       3


<PAGE>

- --------------------------------------------------------------------------------
STANDARD & POOR'S/MOODY'S/FITCH'S   
          CREDIT RATING             OCTOBER 31, 1997     OCTOBER 31, 1996
- --------------------------------------------------------------------------------
             AAA/Aaa                       52%                  42%
- --------------------------------------------------------------------------------
              AA/Aa                        21%                  20%
- --------------------------------------------------------------------------------
               A/A                         22%                  25%
- --------------------------------------------------------------------------------
             BBB/Baa                        5%                  13%
- --------------------------------------------------------------------------------

       We look  forward to  continuing  to manage the Trust to benefit  from the
opportunities  available to investors in the investment grade municipal  market.
We  thank  you for your  investment  and  continued  interest  in The  BlackRock
California  Investment Quality Municipal Trust Inc. Please feel free to call our
marketing  center at (800)  227-7BFM  (7236) if you have any specific  questions
which were not addressed in this report.



Sincerely yours,



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




- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
- --------------------------------------------------------------------------------
    Symbol on American Stock Exchange:                            RAA
- --------------------------------------------------------------------------------
    Initial Offering Date:                                   May 28, 1993
- --------------------------------------------------------------------------------
    Closing Stock Price as of 10/31/97:                         $15.00
- --------------------------------------------------------------------------------
    Net Asset Value as of 10/31/97:                             $14.77
- --------------------------------------------------------------------------------
    Yield on Closing Stock Price as of 10/31/97 ($15.00)1:       5.85%
- --------------------------------------------------------------------------------
    Current Monthly Distribution per Share2:                   $0.073125
- --------------------------------------------------------------------------------
    Current Annualized Distribution per Share2:                 $0.8775
- --------------------------------------------------------------------------------

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


                                       4

<PAGE>
<TABLE>
<CAPTION>

- ------------------------------------------------------------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997
- ------------------------------------------------------------------------------------------------------------------------------------
             PRINCIPAL                                                                                OPTION CALL
  RATING*     AMOUNT                                                                                  PROVISIONS         VALUE
(UNAUDITED)    (000)                                               DESCRIPTION                        (UNAUDITED)      (NOTE 1)
- ------------------------------------------------------------------------------------------------------------------------------------

<S>            <C>          <C>                                                                        <C>            <C>       
                            LONG-TERM INVESTMENTS--146.6%
                            California Educational Facilities Auth. Rev.,
AAA            $1,000          Santa Clara Univ., 5.00%, 9/01/15, MBIA ...........................     9/06 at 102    $   979,030
AAA             1,000          Student Loan Program, Series A, 6.00%, 3/01/16, MBIA ..............     3/07 at 102      1,038,670
A1              1,000       California St. G.O., 5.75%, 3/01/19 ..................................     3/05 at 101      1,033,660
                            California St. Hsg. Fin. Agcy. Rev., Home Mtge.,
Aa2               970          Ser. B-1, 6.45%, 2/01/11 ..........................................     8/04 at 102      1,023,146
Aa2             1,000          Ser. G, 7.20%, 8/01/14 ............................................     8/04 at 102      1,092,260
                            California St. Pub. Wks. Brd. Lease Rev.,
Aaa             1,000          Dept. of Corrections, Ser. A, 6.875%, 11/01/04 ....................    No Opt. Call      1,165,560
A               1,000          St. Univ. Proj., Ser. A, 6.10%, 10/01/06 ..........................    10/04 at 102      1,098,690
AAA             1,000          St. Univ. Proj., Ser. A, 6.40%, 12/01/02, AMBAC ...................    No Opt. Call      1,115,720
Baa             1,385       Foothill / Eastern Trans. Agcy., Ser. A, Zero Coupon, 1/01/04 ........    No Opt. Call      1,016,535
AAA             1,000       Los Angeles County, Special Tax, Ser. A, 5.50%, 9/01/14, FSA .........     9/07 at 102      1,022,250
Aa              1,150       Los Angeles Harbor Dept. Rev., Ser. B, 6.00%, 8/01/13 ................     8/06 at 101      1,211,456
AAA             1,000       Los Angeles Met. Trans. Auth., Sales Tax Rev., 6.00%, 7/01/26, MBIA ..     7/06 at 101      1,058,830
Aa              1,000       Los Angeles Pub. Wks. Fin. Auth. Rev., Regl. Park & Open Space
                               Dist. A, 6.00%, 10/01/15 ..........................................    10/04 at 102      1,054,410
BBB-            1,000       Sacramento Pwr. Auth., Rev., Cogeneration Proj. 6.50%, 7/01/09 .......     7/06 at 102      1,082,680
AAA             1,000       San Diego Ind. Dev. Rev., Ser. A, 5.90%, 6/01/18, AMBAC ..............     6/03 at 102      1,047,150
                            San Francisco City & Cnty.,
AAA             1,000          Arpt. Comn. Rev., Intl. Arpt., Ser. 6, 6.125%, 5/01/09, AMBAC .....     5/04 at 102      1,080,740
AAA             1,000          Sewer Rev., Ser. A, 5.95%, 10/01/25, FGIC .........................    10/03 at 102      1,042,190
AAA             1,000       Southern California Pub. Pwr. Auth. Transmission. Proj. Rev.,
                               5.50%, 7/01/20, MBIA ..............................................     7/02 at 100      1,003,960
                            Univ. of California Rev.,
AAA             1,000          Ser. D, 6.10%, 9/01/10, MBIA ......................................     9/02 at 102      1,072,190
A               1,135          Ser. B, 6.30%, 9/01/13 ............................................     9/03 at 102      1,202,396
AAA               370       West Basin Municipal Water Dist. Rev., COP,
                               1992 Proj. Ser. A, 5.50%, 8/01/22, AMBAC ..........................     8/07 at 101        373,652
                                                                                                                      -----------
                            Total Long-Term Investments (cost $20,176,679) .......................                     21,815,175
                                                                                                                      -----------
                            SHORT-TERM INVESTMENTS**--0.7%
A1                100       Orange County Sanitation Dists., COP,
                               3.80%, 11/03/97, FRDD,
                               (cost $100,000) ...................................................                        100,000
                                                                                                                      -----------

                            TOTAL INVESTMENTS--147.3% (COST $20,276,679) .........................                     21,915,175
                            Other assets in excess of liabilities--3.1% ..........................                        458,299
                            Liquidation value of preferred stock--(50.4)% ........................                     (7,500,000)
                                                                                                                      -----------
                            NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS--100% ...................                    $14,873,474
                                                                                                                      ===========
</TABLE>


- -----------
 *  Rating: using the higher of Standard & Poor's, Moody's or Fitch's rating.
**  For purposes of amortization.
 +  Option  call  provisions:  date  (month/year)  and  prices  of the  earliest
    optional call on redemption.  There may be other call  provisions at varying
    prices at later dates.
    This bond is prerefunded. See Glossary for definitions.

- --------------------------------------------------------------------------------
                              KEY TO ABBREVIATIONS
 AMBAC   -- American Municipal Bond Assurance Corporation   
 COP     -- 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.

                                       5

<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INVESTMENT
QUALITY MUNICIPAL TRUST INC.
STATEMENT OF ASSETS AND LIABILITIES
OCTOBER 31, 1997
- --------------------------------------------------------------------------------

ASSETS

Investments, at value (cost $20,276,679) (Note 1) ...........     $21,915,175
Cash ........................................................         184,810
Interest receivable .........................................         310,140
Deferred organization expenses and other assets .............             491
                                                                  -----------
                                                                   22,410,616
                                                                  -----------
LIABILITIES
Advisory fee payable (Note 2) ...............................           6,642
Dividends payable-common stock ..............................           3,144
Administration fee payable (Note 2) .........................           1,898
Dividends payable-preferred stock ...........................           1,315
Other accrued expenses ......................................          24,143
                                                                  -----------
                                                                       37,142
                                                                  -----------

NET INVESTMENT ASSETS .......................................     $22,373,474
                                                                  ===========


Net investment assets were comprised of:
   Common stock:
      Par value (Note 4) ....................................        $ 10,071
      Paid-in capital in excess of par ......................      13,897,103
   Preferred stock (Note 4) .................................       7,500,000
                                                                  -----------
                                                                   21,407,174
   Undistributed net investment income ......................         146,509
   Accumulated net realized loss ............................        (818,705)
   Net unrealized appreciation ..............................       1,638,496
                                                                  -----------
   Net investment assets, October 31, 1997 ..................     $22,373,474
                                                                  ===========
Net assets applicable to common shareholders ................     $14,873,474
                                                                  ===========
Net asset value per share:
   ($14,873,474 / 1,007,093 shares of common
   stock issued and outstanding) ............................          $14.77
                                                                       ======






- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INVESTMENT
QUALITY MUNICIPAL TRUST INC.
STATEMENT OF OPERATIONS
YEAR ENDED OCTOBER 31, 1997
- --------------------------------------------------------------------------------

NET INVESTMENT INCOME

Income
Interest and discount earned ................................      $1,272,163
                                                                   ----------


Expenses
   Investment advisory ......................................          77,035
   Administration ...........................................          22,010
   Auction agent ............................................          18,800
   Reports to shareholders ..................................          17,000
   Directors ................................................          12,000
   Transfer agent ...........................................           7,000
   Audit ....................................................           7,000
   Legal ....................................................           6,500
   Custodian ................................................           3,000
   Miscellaneous ............................................          20,869
                                                                   ----------
   Total expenses ...........................................         191,214
                                                                   ----------
Net investment income .......................................       1,080,949
                                                                   ----------


REALIZED AND UNREALIZED GAIN ON
INVESTMENTS (NOTE 3)
Net realized gain on investments ............................           1,100
Net change in unrealized appreciation
   on investments ...........................................         618,624
                                                                   ----------
Net gain on investments .....................................         619,724
                                                                   ----------


NET INCREASE IN NET INVESTMENT
ASSETS RESULTING FROM OPERATIONS ............................      $1,700,673

                       See Notes to Financial Statements.

                                        6

<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
STATEMENTS OF CHANGES IN NET INVESTMENT ASSETS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>

                                                                                               YEAR ENDED OCTOBER 31,
                                                                                                           ----------------------
<S>                                                                                    <C>                       <C>       
INCREASE (DECREASE) IN NET INVESTMENT ASSETS                                               1997                    1996
                                                                                           -----                   -----
Operations:
   Net investment income ........................................................      $  1,080,949              $1,089,014
   Net realized gain on investments .............................................             1,100                  32,195
   Net change in unrealized appreciation on investments .........................           618,624                 298,978
                                                                                         ----------              ----------
   Net increase in net investment assets resulting from operations                        1,700,673               1,420,187
Dividends and distributions:
   To common shareholders from net investment income ............................          (876,796)               (796,360)
   To preferred shareholders from net investment income .........................          (245,735)               (254,442)
   To common shareholders in excess of net realized gains on investments ........              (564)                (14,099)
   To preferred shareholders in excess of net realized gains on investments .....              (186)                 (4,883)
                                                                                         ----------              ----------

   Total dividends and distributions ............................................        (1,123,281)             (1,069,784)
                                                                                         ----------              ----------

      Total increase ............................................................           577,392                 350,403

NET INVESTMENT ASSETS

Beginning of year ...............................................................        21,796,082              21,445,679
                                                                                         ----------              ----------
End of year .....................................................................       $22,373,474             $21,796,082
                                                                                         ==========              ==========


</TABLE>

                       See Notes to Financial Statements.


                                       7

<PAGE>

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
FINANCIAL HIGHLIGHTS
- ------------------------------------------------------------------------------------------------------------------------------------

                                                                                                                     FOR THE PERIOD
                                                                          YEAR ENDED OCTOBER 31,                      JUNE 4, 1993*
                                                        -----------------------------------------------------------      THROUGH
<S>                                                     <C>                <C>              <C>            <C>           <C>     
PER SHARE OPERATING PERFORMANCE                         1997                1996              1995          1994    OCTOBER 31, 1993
                                                        -----               ----              ----          ----    ----------------
Net asset value, beginning of period ................   $  14.20           $  13.85         $  11.74       $  14.73      $  14.10
                                                        --------           --------         --------       --------      --------
   Net investment income ............................       1.07               1.08             1.05           1.04           .31
   Net realized and unrealized gain (loss) 
      on investments ................................        .61                .33             2.12          (3.01)          .83
                                                        --------           --------         --------       --------      --------
Net increase (decrease) from 
   investment operations ............................       1.68               1.41             3.17          (1.97)         1.14
                                                        --------           --------         --------       --------      --------
Dividends and Distributions:
   Dividends from net investment income to:
      Common shareholders ...........................       (.87)              (.80)            (.79)          (.79)         (.20)
      Preferred shareholders ........................       (.24)              (.25)            (.27)          (.18)         (.04)
   Distributions from capital gains to:
      Common shareholders ...........................         --                 --               --           (.03)           --
      Preferred shareholders ........................         --                 --               --           (.01)           --
   Distributions in excess of net realized gains 
   on investments to:
      Common shareholders ...........................        ***               (.01)              --             --            --
      Preferred shareholders ........................        ***                ***               --             --            --
                                                        --------           --------         --------       --------      --------
   Total dividends and distributions ................      (1.11)             (1.06)           (1.06)         (1.01)         (.24)
                                                        --------           --------         --------       --------      --------
Capital charge with respect to issuance of 
  common and preferred stock ........................         --                 --               --           (.01)         (.27)
                                                        --------           --------         --------       --------      --------
Net asset value, end of period** ....................   $  14.77            $  14.20        $  13.85       $  11.74      $  14.73#
                                                        ========           ========         ========       ========      ========
Per share market value, end of period** .............   $  15.00            $  13.50        $ 12.625       $ 10.625      $  14.00
                                                        ========           ========         ========       ========      ========
TOTAL INVESTMENT RETURN : ...........................     17.98%             13.80%           26.86%       (18.85)%          .68%
RATIOS TO AVERAGE NET ASSETS OF 
 COMMON SHAREHOLDERS:
Expenses ............................................      1.32%              1.42%            1.52%          1.25%         1.07%+++
Net investment income before preferred 
  stock dividends ...................................      7.48%              7.78%            8.24%          7.81%         5.31%+++
Preferred stock dividends ...........................      1.70%              1.82%            2.09%          1.36%         0.73%+++
Net investment income available to 
  common shareholders ...............................      5.78%              5.96%            6.15%          6.45%         4.58%+++
SUPPLEMENTAL DATA:
Average net assets of common shareholders 
 (in thousands) .....................................   $ 14,445          $  13,996        $  12,892       $ 13,362      $ 14,504
Portfolio turnover rate .............................        28%                72%             149%           184%           13%
Net assets of common shareholders, 
  end of period (in thousands) ......................   $ 14,873          $  14,296        $  13,946       $ 11,826      $ 14,836
Asset coverage per share of preferred stock, 
 end of period## ....................................   $ 74,583          $  72,654        $  71,485       $128,837      $148,910
Preferred stock outstanding (in thousands) ..........   $  7,500          $   7,500        $   7,500       $  7,500        $7,500
</TABLE>

- -------------------
    * Commencement of investment operations.
   ** Net asset value and market value are published in THE WALL STREET  JOURNAL
      each Monday.
  *** Actual  amount  paid  for the  year  ended  October  31,  1997  to  common
      shareholders  was  $0.00056 per share and to  preferred  shareholders  was
      $0.00018 per common share.  Actual  amount paid to preferred  shareholders
      for the year ended October 31, 1996 was $0.0048 per common share.
    # Net asset value immediately after the closing of the first public offering
      was $14.01.
   ## 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  value on the first day and a sale at the  current
      market  price on the  last  day of each  period  reported.  Dividends  and
      distributions   are  assumed  for  purposes  of  this  calculation  to  be
      reinvested  at prices  obtained  under the Trust's  dividend  reinvestment
      plan.  This  calculation  does not reflect  brokerage  commissions.  Total
      investment returns for periods of less than one year are not annualized.
   ++ Ratios are calculated on the basis of income, expenses and preferred stock
      dividends  applicable to both the common and preferred  shares relative to
      the average net assets of common shareholders. 
  +++ Annualized.
      The information  above represents the audited  operating  performance data
      for a share of common stock outstanding, total investment return, ratio to
      average net assets and other  supplemental  data for the period indicated.
      This  information  has been  determined  based upon financial  information
      provided in the financial statements and market value data for the Trust's
      common stock.

                       See Notes to Financial Statements.

                                       8

<PAGE>
- --------------------------------------------------------------------------------
THE BLACKROCK CALIFORNIA INVESTMENT
QUALITY MUNICIPAL TRUST INC.
NOTES TO FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
NOTE 1. ACCOUNTING POLICIES
The BlackRock  California  Investment Quality Municipal Trust Inc. (the "Trust")
was  organized  in Maryland on April 12,  1993 as a  non-diversified  closed-end
management  investment company. The Trust had no transactions until May 27, 1993
when it sold 7,093 shares of common  stock for  $100,012 to BlackRock  Financial
Management,  Inc., (the "Adviser").  Investment  operations commenced on June 4,
1993.

    The Trust's  investment  objective is to provide high current  income exempt
from regular  federal and  California  state income  taxes  consistent  with the
preservation  of capital.  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 more  than 60 days are  valued  at
current market quotations. 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,  or,  by  amortizing  their  value  on the  61st  day  prior to
maturity,  if their original term to maturity from date of purchase  exceeded 60
days.

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

FEDERAL INCOME TAXES: For federal income tax purposes, the Trust is treated as a
separate taxpaying entity. It is the intent of the Trust to continue to meet the
requirements  of the Internal  Revenue Code  applicable to regulated  investment
companies  and to  distribute  all of its 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
realized short-term capital gains and other sources, if necessary. Net long-term
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.

DEFERRED  ORGANIZATION  EXPENSES:  A total of $16,000 was incurred in connection
with the organization of the Trust. These costs have been deferred and are being
amortized  ratably  over a period  of  sixty  months  from  the  date the  Trust
commenced investment operations.

RECLASSIFICATION  OF  CAPITAL  ACCOUNTS:  The Trust  accounts  and  reports  for
permanent differences between financial and tax reporting in accordance with the
American Institute of Certified Public Accountants'  Statement of Position 93-2:
Determination,  Disclosure  and  Financial  Statement  Presentation  of  Income,
Capital Gain and Return of Capital  Distributions by Investment  Companies.  The
effect of applying  this  statement  for the year ended  October 31, 1997 was to
increase accumulated net realized loss and increase undistributed net investment
income by $3,468.  Net investment income, net realized gains and net assets were
not affected by this change.

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  Prudential  Investments  Fund
Management LLC ("PIFM"), an indirect,  wholly-owned subsidiary of The Prudential
Insurance Company of America.

                                       9

<PAGE>

    The  investment  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 PIFM 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.  PIFM pays occupancy and certain clerical
and accounting costs of the Trust. The Trust bears all other costs and expenses.

NOTE 3. PORTFOLIO SECURITIES
Purchases and sales of investment securities, other than short-term investments,
for the year ended  October  31,  1997  aggregated  $5,927,577  and  $6,341,643,
respectively.

    The federal income tax basis of the Trust's  investments at October 31, 1997
was  substantially the same as the basis for financial  reporting  purposes and,
accordingly, net and gross unrealized appreciation was $1,638,496.

    For federal income tax purposes,  the Trust had a capital loss  carryforward
at October 31, 1997 of  approximately  $817,000 which will expire in 2002.  Such
carryforward is after utilization of approximately  $1,100 to offset the Trust's
net taxable gains recognized in the year ended October 31, 1997. Accordingly, no
capital gain distribution is expected to be paid to shareholders until net gains
have been realized in excess of such amount.

NOTE 4. CAPITAL
There are 200 million shares of $.01 par value common stock  authorized.  Of the
1,007,093  shares  outstanding  at October 31,  1997,  the  Adviser  owned 7,093
shares.  As of October 31, 1997 there were 300 shares of Preferred  Stock Series
W7 outstanding.

    Offering costs  ($104,994)  incurred in connection with the  underwriting of
the Trust's  common stock have been charged to paid-in  capital in excess of par
of the common stock.

    The Trust may classify or  reclassify  any  unissued  shares of common stock
into  one or more  series  of  preferred  stock.  On July  29,  1993  the  Trust
reclassified  150 shares of common  stock and issued a series of Auction  Market
Preferred  Stock  ("Preferred  Stock")  Series  W7.  The  Preferred  Stock had a
liquidation  value  of  $50,000  per  share  plus  any  accumulated  but  unpaid
dividends.  On May 16, 1995 shareholders approved a proposal to split each share
of  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.

    Underwriting  discounts  ($112,500) and offering costs ($75,344) incurred in
connection  with the  Preferred  Stock  offering  have been  charged  to paid-in
capital in excess of par of the common stock.

    Dividends on Series W7 are  cumulative at a rate which is reset every 7 days
based on the results of an auction.  Dividend  rates  ranged from 3.00% to 3.87%
during the year ended October 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
shares 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 October 31, 1997,  the Board of Directors of the Trust  declared a
dividend  from  undistributed  earnings of $0.073125  per common  share  payable
November 28, 1997 to shareholders of record on November 14, 1997.

    For the period November 1, 1997 to November 30, 1997,  dividends declared on
Preferred  Stock  totalled  $18,985 in aggregate for the  outstanding  Preferred
Stock.


                                       10

<PAGE>

- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
                         REPORT OF INDEPENDENT AUDITORS
- --------------------------------------------------------------------------------

The Shareholders and Board of Directors of
The BlackRock California Investment Quality Municipal Trust Inc.:

       We have audited the  accompanying  statement  of assets and  liabilities,
including the portfolio of investments,  of The BlackRock California  Investment
Quality  Municipal Trust Inc. as of October 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 four years in the period  then ended and for the period  June 4,
1993  (commencement  of  investment  operations)  to  October  31,  1993.  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 October
31, 1997, by correspondence  with the custodian and brokers;  where replies were
not received from brokers, we performed other auditing procedures. 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  Investment  Quality  Municipal  Trust Inc. at October 31,
1997,  and the  results of its  operations,  the  changes in its net  investment
assets  and its  financial  highlights  for the  respective  stated  periods  in
conformity with generally accepted accounting principles.




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

New York, New York
December 12, 1997


                                       11

<PAGE>

- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL 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  (October 31, 1997) as to the federal tax status
of dividends you received during such fiscal year.The dividend paid December 27,
1996 to common shareholders of record on December 13, 1996 included $0.00056 per
share of taxable  ordinary  income.  The  dividend  paid  December  11,  1996 to
preferred  shareholders  of record on December 10, 1996 included $0.62 per share
of  taxable  ordinary  income.  All  other  dividends  paid to both  common  and
preferred shareholders consisted of federal tax-exempt interest.


- --------------------------------------------------------------------------------
                            DIVIDEND INVESTMENT PLAN
- --------------------------------------------------------------------------------

       Pursuant  to  the  Trust's  Dividend   Reinvestment  Plan  (the  "Plan"),
shareholders will  automatically have all distributions of dividends and capital
gains  reinvested  by State Street Bank and Trust  Company (the "Plan Agent") in
Trust  shares  pursuant to the Plan  unless an election is made to receive  such
amounts in cash.  The Plan Agent will effect  purchases of shares under the Plan
in the open market.  Shareholders  who elect not to 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 Transfer  Agent,  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 American
Stock Exchange or elsewhere,  for the participants' accounts. The Trust will not
issue any new shares in connection with 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 shares.
       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,  state or local income taxes 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 by the Plan
Agent upon at least 90 days' written  notice to all  shareholders  of the Trust.
The Plan may be  terminated by the Plan Agent or the Trust upon at least 30 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 addresses
are 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,  or to its charter
or by-laws,  or 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.


                                       12

<PAGE>

- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL TRUST INC.
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

THE TRUST'S INVESTMENT OBJECTIVE

The  BlackRock  California   Investment  Quality  Municipal  Trust's  investment
objective  is to provide  high current  income  exempt from regular  Federal and
California income tax consistent with the preservation of capital.


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 over $50
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 either the New York or American Stock
Exchanges,  several  open-end  funds and over 125 separate  accounts for various
clients  in the U.S.  and  overseas.  BlackRock  is a  subsidiary  of PNC  Asset
Management  Group  which is a division  of PNC Bank,  N.A.,  one of the  nations
largest banking organizations.


WHAT CAN THE TRUST INVEST IN?

Under normal  conditions,  the Trust expects to continue to manage its assets so
that at least 80% of its investments are rated at least  investment grade ("BBB"
by Standard & Poor's and "Baa" by Moody's  Investor  Services)  and up to 20% of
its  assets  may  instead be deemed to be of  equivalent  credit  quality by the
Adviser.  The Trust  intends  to  invest  substantially  all of the  assets in a
portfolio of investment grade California  Municipal  Obligations,  which include
debt  obligations   issued  by  or  on  behalf  of  California,   its  political
subdivisions,  agencies and  instrumentalities  and by other qualifying  issuers
that pay interest  which,  in the opinion of the bond counsel of the issuer,  is
exempt from regular  Federal and  California  income tax.  California  Municipal
Obligations are issued to obtain funds for various public  functions,  including
the   construction  of  public   facilities,   the  refinancing  of  outstanding
obligations, the obtaining of funds for general operating expenses and for loans
to other public institutions and facilities.


WHAT IS THE ADVISER'S INVESTMENT STRATEGY?

The Adviser will manage the assets of the Trust in  accordance  with the Trust's
investment  objective and policies to seek to achieve its objective by investing
in investment  grade  California  Municipal  Obligations.  The Adviser  actively
manages the assets in relation to market  conditions  and interest rate changes.
Depending  on yield and  portfolio  allocation  considerations,  the Adviser may
choose  to invest a  portion  of the  Trust's  assets  in  securities  which pay
interest that is subject to AMT (alternative  minimum tax). The Trust intends to
emphasize   investments  in  California  Municipal  Obligations  with  long-term
maturities and expects to maintain an average portfolio maturity of 15-20 years,
but the  average  maturity  may be  shortened  or  lengthened  from time to time
depending on market conditions.

Under current market conditions the use of leverage  increases the income earned
by the Trust.  The Trust  employs  leverage  primarily  through the  issuance of
preferred  stock.   Preferred  stockholders  will  receive  dividends  based  on
short-term rates in exchange for allowing the Trust to borrow additional assets.
These assets will be invested in longer-term assets which typically offer higher
interest  rates and the  difference  between the cost of the  dividends  paid to
preferred  stockholders  and the interest earned on the  longer-term  securities
will provide higher income levels for common  stockholders in most interest rate
environments.  The Trust issued  preferred  stock to leverage  the  portfolio at
approximately  35% of total assets.  See "Leverage  Considerations in the Trust"
below.


HOW ARE THE TRUST'S  SHARES  PURCHASED  AND SOLD?  DOES THE TRUST PAY  DIVIDENDS
REGULARLY?

The Trust's  shares are traded on the American  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 fund 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.


                                       13

<PAGE>

LEVERAGE CONSIDERATIONS IN THE TRUST

       Leverage  increases the duration (or price  sensitivity of the net assets
with respect to changes in interest  rates) of the Trust,  which can improve the
performance  of the fund in a  declining  rate  environment,  but can  cause net
assets to decline  faster in a rapidly  rising  interest rate  environment.  The
Trust may reduce,  or unwind,  the amount of leverage  employed should BlackRock
consider that  reduction to be in the best  interests of the Trust.  BlackRock's
portfolio managers  continuously monitor and regularly review the Trust's use of
leverage  and  maintain  the  ability to unwind the  leverage  if that course is
chosen.

SPECIAL CONSIDERATIONS AND RISK FACTORS RELEVANT TO THE TRUST

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

INVESTMENT  OBJECTIVE.  Although  the  objective of the Trust is to provide high
current income exempt from regular Federal and California  income tax consistent
with the preservation of capital,  there can be no assurance that this objective
will be achieved.

DIVIDEND  CONSIDERATIONS.  The income and dividends paid by the Trust are likely
to vary over time as fixed income market conditions change. Future dividends may
be higher or lower than the dividend the Trust is currently paying.

LEVERAGE.  The Trust utilizes leverage through  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 American Stock  Exchange  (AMEX symbol:  RAA) 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.

INVESTMENT GRADE MUNICIPAL  OBLIGATIONS.  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.

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. These securities involve 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.


                                       14

<PAGE>

- --------------------------------------------------------------------------------
        THE BLACKROCK CALIFORNIA INVESTMENT QUALITY MUNICIPAL 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 the deduction of
                             expenses. This Trust declares and pays dividends to
                             common shareholders on a monthly basis.

DIVIDEND REINVESTMENT:       Shareholders    may   have   all    dividends   and
                             distributions   of  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  investments,   minus  any
                             liabilities including accrued expenses,  divided 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 NEW
                             YORK TIMES or THE WALL STREET JOURNAL each 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.

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


                                       15

<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
Prudential Investments Fund Management LLC
Gateway Center Three
100 Mulberry Street
Newark, NJ 07102-4077

CUSTODIAN AND TRANSFER AGENT
State Street Bank and Trust Company
One Heritage Drive
North Quincy, MA 02171
(800) 699-1BFM

AUCTION AGENT
Bankers Trust Company
4 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 INVESTMENT
                          QUALITY MUNICIPAL TRUST INC.
                 c/o Prudential Investments Fund Management LLC
                              Gateway Center Three
                               100 Mulberry Street
                              Newark, NJ 07102-4077
                                 (800) 227-7BFM


                                                                     09247U-10-7
[LOGO] Printed on recycled paper                                     09247U-20-6




================================================================================




THE  BLACKROCK
CALIFORNIA
INVESTMENT QUALITY
MUNICIPAL TRUST INC.
================================================================================
ANNUAL REPORT
OCTOBER 31, 1997



[GRAPHIC]




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