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: 2025DEC16                                                                                        
                                                                        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    5760.25     37211      27      37   44.75  115248    24      51        
 PBR      PILOT BUTTE OFFSTREAM, 22 MILES NW OF RIVERTON, WY 5454.99     29343      -8       0    5.01    4378    87     110        
 BOYR     BOYSEN RESERVOIR, THERMOPOLIS, WYOMING             4711.97    520528     630     630   13.03  221066    70      93        
 ANCR     ANCHOR RESERVOIR, SOUTH FORK OWL CREEK, WYOMING    6364.11       585       4       0   76.89   16643     3     149        
 BBR      BUFFALO BILL RESERVOIR ON SHOSHONE RIVER, WYOMING  5355.90    373751     282     150   37.60  272814    57      84        
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MONTANA AREA OFFICE
 
   Big Horn River
 BHR      BIGHORN LAKE, MONTANA                              3630.17    898012    1046    1952    9.83  122561    87     104        
 BHSX     BIGHORN RIVER BELOW BIA CANAL, MT                  3186.15                      2063                            92        
 
   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,  5523.84     79418     202      35   22.26   94949    45      84        
 HEBR     HEBGEN LAKE NEAR WEST YELLOWSTONE, MONTANA         6529.13    315848     264     665    5.74   70333    81      98        
 CFR      CANYON FERRY LAKE NEAR HELENA, MONTANA             3783.97   1463866    3704    2938   13.03  428022    77      95        
 
   Sun River Basin
 GIBR     GIBSON RESERVOIR, MONTANA                          4652.61     27062    1239     146   71.39   71625    27     159        
 PSHR     PISHKUN RESERVOIR NEAR AUGUSTA, MONTANA            4355.93     28088     -36       0   14.07   18606    60      96        
 WCR      WILLOW CREEK RESERVOIR, 6 MILES NW AUGUSTA, MONTAN 4112.83      4142      52       0   29.17   27706    13      17        
 
   Marias River Basin
 SWTR     SWIFT RESERVOIR, BIRCH CREEK, MONTANA              ******  NO DATA Within Lookback Period to 2025MAY30 ******             
 LER      LAKE ELWELL SPILLWAY TRANSDUCER, MONTANA           2980.34    714143    1792     252   12.66  211506    77      94        
 
   Milk River Basin
 SHER     LAKE SHERBURNE, SWIFT CURRENT CREEK NEAR BABB, MT  4782.56     57075     525       0    5.44    9072    86     196        
 FRR      FRESNO RESERVOIR NEAR HAVRE, MONTANA               2556.58     30732      20      40   18.42   61014    33      78        
 NELR     NELSON RESERVOIR AT DAM 10 MILES NW OF SACO, MT    2215.79     56060     -18       0    5.81   22890    71     102