G R E A T    P L A I N S    R E G I O N A L    O F F I C E                              
 
       Daily Reservoir Report for: 2026JAN07                                                                                        
                                                                        TOTAL   DAILY   DAILY   FEET   SPACE  PERCENT  HISTORIC   
                                                            ELEVATION  STORAGE  INFLOW  OUTFLO   TO   TO FILL   FULL  DAILY AVE   
 SITE            RESERVOIR NAME                              (feet)    (ac-ft)  (cfs)   (cfs)   FILL  (ac-ft)    (%)     (%)      
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   Big Horn River Basin
 BLR      BULL LAKE RESERVOIR ON BULL LAKE CREEK, WYOMING    5761.32     39314      76      36   43.68  113145    25      54        
 PBR      PILOT BUTTE OFFSTREAM, 22 MILES NW OF RIVERTON, WY 5454.86     29233       0       0    5.14    4488    86     108        
 BOYR     BOYSEN RESERVOIR, THERMOPOLIS, WYOMING             4712.18    523566     675     600   12.82  218028    70      95        
 ANCR     ANCHOR RESERVOIR, SOUTH FORK OWL CREEK, WYOMING    6365.39       647      -9       0   75.61   16581     3     171        
 BBR      BUFFALO BILL RESERVOIR ON SHOSHONE RIVER, WYOMING  5357.98    387002     160     160   35.52  259563    59      87        
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MONTANA AREA OFFICE
 
   Big Horn River
 BHR      BIGHORN LAKE, MONTANA                              3627.00    869734     722    2009   13.00  150839    85     104        
 BHSX     BIGHORN RIVER BELOW BIA CANAL, MT                  3187.10                      2040                            96        
 
   Upper Missouri River Basin
 LIMR     LIMA RES UPSTREAM OF CLARK CANYON RES, MONTANA     6567.41     23801      12      13   20.59   61224    27   2025OCT27    
 CCR      CLARK CANYON RESERVOIR, BEAVERHEAD RVR NR DILLON,  5526.05     86974     176      35   20.05   87393    49      86        
 HEBR     HEBGEN LAKE NEAR WEST YELLOWSTONE, MONTANA         6529.70    322296     897     724    5.17   63885    83     102        
 CFR      CANYON FERRY LAKE NEAR HELENA, MONTANA             3784.43   1477885    2211    2982   12.57  414003    78      98        
 
   Sun River Basin
 GIBR     GIBSON RESERVOIR, MONTANA                          4675.07     43913     362     182   48.93   54774    44     231        
 PSHR     PISHKUN RESERVOIR NEAR AUGUSTA, MONTANA            4355.92     28077      -5       0   14.08   18617    60      97        
 WCR      WILLOW CREEK RESERVOIR, 6 MILES NW AUGUSTA, MONTAN 4113.19      4293       0       0   28.81   27555    13      18        
 
   Marias River Basin
 SWTR     SWIFT RESERVOIR, BIRCH CREEK, MONTANA              ******  NO DATA Within Lookback Period to 2025JUN21 ******             
 LER      LAKE ELWELL SPILLWAY TRANSDUCER, MONTANA           2982.15    739799     622     247   10.85  185850    79      99        
 
   Milk River Basin
 SHER     LAKE SHERBURNE, SWIFT CURRENT CREEK NEAR BABB, MT  4774.32     44556      95     296   13.68   21591    67     142        
 FRR      FRESNO RESERVOIR NEAR HAVRE, MONTANA               2556.46     30491      10      40   18.54   61255    33      80        
 NELR     NELSON RESERVOIR AT DAM 10 MILES NW OF SACO, MT    2215.48     54954     -17       0    6.12   23996    69     102