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: 2026SEP06                                                                                        
                                                                        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)    (%)     (%)      
_______________________________________________________________________________________________________________________________   
 
 
   Big Horn River Basin
 BLR      BULL LAKE RESERVOIR ON BULL LAKE CREEK, WYOMING    5783.36     89977     204     796   21.64   62482    59     103        
 PBR      PILOT BUTTE OFFSTREAM, 22 MILES NW OF RIVERTON, WY 5450.05     25293     492     568    9.95    8428    75     154        
 BOYR     BOYSEN RESERVOIR, THERMOPOLIS, WYOMING             4710.35    497553     371     934   14.65  244041    67      89        
 ANCR     ANCHOR RESERVOIR, SOUTH FORK OWL CREEK, WYOMING    6369.66       893       1       5   71.34   16335     5     184        
 BBR      BUFFALO BILL RESERVOIR ON SHOSHONE RIVER, WYOMING  5372.72    487667     339    1739   20.78  158898    75      97        
-------------------------------------------------------------------------------------------------------------------------------   
MONTANA AREA OFFICE
 
   Big Horn River
 BHR      BIGHORN LAKE, MONTANA                              3623.16    839250    1744    1820   16.84  181323    82      97        
 BHSX     BIGHORN RIVER BELOW BIA CANAL, MT                  3187.35                      1522                            98        
 
   Upper Missouri River Basin
 LIMR     LIMA RES UPSTREAM OF CLARK CANYON RES, MONTANA     6566.84     22567      59      16   21.16   62458    26      94        
 CCR      CLARK CANYON RESERVOIR, BEAVERHEAD RVR NR DILLON,  5513.78     50415     136      50   32.32  123952    28      75        
 HEBR     HEBGEN LAKE NEAR WEST YELLOWSTONE, MONTANA         6530.94    336685     524     760    3.93   49496    87      97        
 CFR      CANYON FERRY LAKE NEAR HELENA, MONTANA             3786.67   1546975    2210    3310   10.33  344913    81      96        
 
   Sun River Basin
 GIBR     GIBSON RESERVOIR, MONTANA                          4611.47      5920     268     113  112.53   92767     5      57        
 PSHR     PISHKUN RESERVOIR NEAR AUGUSTA, MONTANA            4365.97     40760     186     896    4.03    5934    87     128        
 WCR      WILLOW CREEK RESERVOIR, 6 MILES NW AUGUSTA, MONTAN 4122.88     10158      35       0   19.12   21690    31      65        
 
   Marias River Basin
 SWTR     SWIFT RESERVOIR, BIRCH CREEK, MONTANA              ******  NO DATA Within Lookback Period to 2026FEB18 ******             
 LER      LAKE ELWELL SPILLWAY TRANSDUCER, MONTANA           2988.18    835284      34     533    4.82   90365    90     101        
 
   Milk River Basin
 SHER     LAKE SHERBURNE, SWIFT CURRENT CREEK NEAR BABB, MT  4752.48     19204     156     638   35.52   46943    29      83        
 FRR      FRESNO RESERVOIR NEAR HAVRE, MONTANA               2557.21     32013     534     102   17.79   59733    34      85        
 NELR     NELSON RESERVOIR AT DAM 10 MILES NW OF SACO, MT    2215.41     54705     341      92    6.19   24245    69      98