<ARTICLE>                     5
<MULTIPLIER>                  1
<CURRENCY>                    U.S. Dollars
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                                                    DEC-31-1997
<PERIOD-START>                                                       JAN-01-1997
<PERIOD-END>                                                         SEP-30-1997
<EXCHANGE-RATE>                                                                1
<CASH>                                                                    88,303
<SECURITIES>                                                                   0
<RECEIVABLES>                                                              3,200
<ALLOWANCES>                                                               1,600
<INVENTORY>                                                                    0
<CURRENT-ASSETS>                                                          89,903
<PP&E>                                                                 1,333,626
<DEPRECIATION>                                                           396,258
<TOTAL-ASSETS>                                                         1,027,271
<CURRENT-LIABILITIES>                                                     27,671
<BONDS>                                                                        0
<PREFERRED-MANDATORY>                                                          0
<PREFERRED>                                                                    0
<COMMON>                                                                       0
<OTHER-SE>                                                               999,600
<TOTAL-LIABILITY-AND-EQUITY>                                           1,027,671
<SALES>                                                                        0
<TOTAL-REVENUES>                                                         177,122
<CGS>                                                                          0
<TOTAL-COSTS>                                                            102,483
<OTHER-EXPENSES>                                                          44,834
<LOSS-PROVISION>                                                               0
<INTEREST-EXPENSE>                                                             0
<INCOME-PRETAX>                                                           29,805
<INCOME-TAX>                                                                   0
<INCOME-CONTINUING>                                                       29,805
<DISCONTINUED>                                                                 0
<EXTRAORDINARY>                                                                0
<CHANGES>                                                                      0
<NET-INCOME>                                                              29,805
<EPS-PRIMARY>                                                               6.73
<EPS-DILUTED>                                                               6.73