<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000276300
<NAME> LEGG MASON CASH RESERVE TRUST
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-2000
<PERIOD-START> SEP-01-1999
<PERIOD-END> AUG-31-2000
<INVESTMENTS-AT-COST> 1998157
<INVESTMENTS-AT-VALUE> 1998157
<RECEIVABLES> 18566
<ASSETS-OTHER> 1741
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2018464
<PAYABLE-FOR-SECURITIES> 60265
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 8179
<TOTAL-LIABILITIES> 68445
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 0
<SHARES-COMMON-STOCK> 1949964
<SHARES-COMMON-PRIOR> 1777163
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 1950019
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 108556
<OTHER-INCOME> 0
<EXPENSES-NET> 12521
<NET-INVESTMENT-INCOME> 96035
<REALIZED-GAINS-CURRENT> (2)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 96033
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (96035)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5826918
<NUMBER-OF-SHARES-REDEEMED> (5745514)
<SHARES-REINVESTED> 91397
<NET-CHANGE-IN-ASSETS> 172799
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 8531
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 12521
<AVERAGE-NET-ASSETS> 1830872
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .05
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (.05)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .68
</TABLE>