B A S I N   S U M M A R Y  O F
                         S N O W    C O U R S E    D A T A

                                   JANUARY 1997


     SNOW COURSE         ELEVATION    DATE    SNOW   WATER     LAST   AVERAGE
                                             DEPTH  CONTENT    YEAR   1961-90
--------------------------------------------------------------------------------
  
SNAKE RIVER BASIN                                                    
     ASTER CREEK            7750   12/30/96   108     28.0     19.1     12.8
     BASE CAMP PILLOW       7030    1/01/97   ---     17.5     10.7      7.9
     BASE CAMP        (d)   7030    1/01/97    67     19.1     10.6      8.6
     BLACK BEAR PILLOW      7950    1/01/97   ---     38.6     20.8     15.6
     BLIND BULL PILLOW      8900    1/01/97   ---     25.4     17.8     12.5
     CCC CAMP               7000    1/01/97   ---     10.9E     6.7      5.1
     COTTONWOOD CR PILLOW   7700    1/01/97   ---     16.6     15.0      8.8
     DARBY CANYON           8250    1/04/97    62     19.2      9.6     10.0
     EAST RIM DIV PILLOW    7930    1/01/97   ---     10.8      7.4      5.7
     FOUR MILE MEADOWS      7860    1/01/97   ---     11.7E     8.2       --
     GLADE CREEK            7040   12/31/96    69     20.2      8.5      9.7
     GRASSY LAKE PILLOW     7270    1/01/97   ---     26.8     14.0     14.3
     GROS VENTRE PILLOW     8750    1/01/97   ---     14.0      9.5      6.9
     HUCKLEBERRY DIVIDE     7300   12/31/96    67     16.8      9.1      9.3
     JACKPINE CREEK         7350    1/04/97    60     17.6      5.4      8.9
     LEWIS LAKE PILLOW      7850    1/01/97   ---     31.3     21.9     13.8
     MORAN                  6750    1/01/97    38     11.9      4.6      5.4
     PHILLIPS BENCH PILL.   8200    1/01/97   ---     26.5     13.1     11.5
     SALT RIVER PILLOW      7600    1/01/97   ---     13.1      7.3      5.1
     SNAKE RIVER STATION    6920   12/31/96    62     16.2      7.4      8.8
     SPRING CRK. PILLOW     9000    1/01/97   ---     22.1     16.6     11.6
     THUMB DIVIDE           7980   12/30/96    72     17.8      9.8      8.4
     TOGWOTEE PASS PILLOW   9580    1/01/97   ---     20.1     16.2     11.1
     TWO OCEAN PILLOW       9240    1/01/97   ---     26.4     20.2     12.6
     WILLOW CREEK PILLOW    8450    1/01/97   ---     24.5     16.8     12.8
   
UPPER YELLOWSTONE & MADISON RIVER BASINS                             
     BLACK BEAR PILLOW      7950    1/01/97   ---     38.6     20.8     15.6
     CANYON PILLOW          8090    1/01/97   ---     14.4      9.5      5.3
     FISHER CREEK PILLOW    9100    1/01/97   ---     34.2     24.6     15.6
     LAKE CAMP              7780   12/27/96    45      9.9       --      3.8
     LUPINE CREEK           7380   12/30/96    43      9.6      3.0      4.3
     MADISON PLT PILLOW     7750    1/01/97   ---     24.1     12.5     10.1
     NORRIS BASIN           7500   12/31/96    37      9.8      5.2      5.0
     N.E. ENTRANCE PILLOW   7350    1/01/97   ---      6.9      5.0      4.0
     NORTHEAST ENTRANCE     7350    1/02/97    27      7.1      4.8      3.7
     OLD FAITHFUL           7400   12/31/96    60     15.4      7.6      6.4
     PARKERS PEAK PILLOW    9400    1/01/97   ---     18.4     14.5     10.6
     SYLVAN LAKE PILLOW     8420    1/01/97   ---     17.3       --     10.8
     THUMB DIVIDE           7980   12/30/96    72     17.8      9.8      8.4
     TWENTY-ONE MILE        7150   12/30/96    60     14.0      5.9      7.3
     TWO OCEAN PILLOW       9240    1/01/97   ---     26.4     20.2     12.6
     WEST YELL'ST PILLOW    6700   12/31/96   ---      8.0      1.6      4.0
     WEST YELLOWSTONE       6700   12/31/96    41     11.4      2.9      4.8
 
WIND RIVER BASIN                                                     
     BURROUGHS CRK PILLOW   8750    1/01/97   ---     15.6     10.5      7.1
     CHRISTINA LK PILLOW    9980    1/01/97   ---     12.6      6.6      7.5
     COLD SPRINGS PILLOW    9630    1/01/97   ---      6.6      5.5      4.4
     HOBBS PARK PILLOW     10100    1/01/97   ---     10.7     10.3      7.7
     LITTLE WARM PILLOW     9370    1/01/97   ---     11.2      9.1      5.1
     SOUTH PASS PILLOW      9040    1/01/97   ---     16.9      9.7      8.3
     ST LAWRENCE ALT PILL   8620    1/01/97   ---      4.9      3.7      3.3
     TOGWOTEE PASS PILLOW   9580    1/01/97   ---     20.1     16.2     11.1
     TOWNSEND CRK PILLOW    8700    1/01/97   ---      6.3      5.7      4.5
     YOUNTS PEAK PILLOW     8350    1/01/97   ---     15.0     12.4      8.9

BIG HORN RIVER BASIN                                                 
     BALD MOUNTAIN PILLOW   9380    1/01/97   ---     10.8      9.5     10.2
     BONE SPGS. PILLOW      9350    1/01/97   ---      9.9      9.8      7.8
     KIRWIN PILLOW          9550    1/01/97   ---      9.8     10.2      5.2
     LOST CREEK PILLOW      8080    1/01/97   ---      7.6      3.5      5.8
     MIDDLE POWDER PILLOW   7760    1/01/97   ---      7.7      5.0      5.7
     OWL CREEK PILLOW       8980    1/01/97   ---      4.7      2.4      1.9
     POWDER RVR.PASS PILL   9480    1/01/97   ---      6.3      6.6      5.1
     SHELL CREEK PILLOW     9580    1/01/97   ---      9.5      9.3      7.5
     TIMBER CREEK PILLOW    7950    1/01/97   ---      3.7      2.5      2.4

SHOSHONE & CLARKS FORK RIVER BASINS                                  
     BEARTOOTH LK. PILLOW   9280    1/01/97   ---     21.7     18.1     11.5
     BLACKWATER PILLOW      9780    1/01/97   ---     22.8     18.8      9.9
     FISHER CREEK PILLOW    9100    1/01/97   ---     34.2     24.6     15.6
     EVENING STAR PILLOW    9200    1/01/97   ---     25.4     23.0     12.9
     MARQUETTE PILLOW       8760    1/01/97   ---      6.6      7.5      3.8
     PARKERS PEAK PILLOW    9400    1/01/97   ---     18.4     14.5     10.6
     N.E. ENTRANCE PILLOW   7350    1/01/97   ---      6.9      5.0      4.0
     NORTHEAST ENTRANCE     7350    1/02/97    27      7.1      4.8      3.7
     PARKERS PEAK PILLOW    9400    1/01/97   ---     18.4     14.5     10.6
     SYLVAN ROAD PILLOW     7120    1/01/97   ---     11.5      9.0      5.8
     WHITE MILL PILLOW      8700    1/01/97   ---     23.3     18.8     11.4
     WOLVERINE PILLOW       7650    1/01/97   ---      9.9      8.4      5.2
     YOUNTS PEAK PILLOW     8350    1/01/97   ---     15.0     12.4      8.9

POWDER & TONGUE RIVER BASINS                                         
     BEAR TRAP PILLOW       8200    1/01/97   ---      4.2      2.7      3.7
     BONE SPGS. PILLOW      9350    1/01/97   ---      9.9      9.8      7.8
     BURGESS JCT. PILLOW    7880    1/01/97   ---      6.9      4.9      5.5
     CLOUD PEAK PILLOW      9850    1/01/97   ---      9.7      8.6      5.6
     DOME LAKE PILLOW       8880    1/01/97   ---      6.9      7.3      6.3
     HANSEN S.M. PILLOW     8360    1/01/97   ---      4.1      3.2      3.3
     LOST CREEK PILLOW      8080    1/01/97   ---      7.6      3.5      5.8
     MIDDLE POWDER PILLOW   7760    1/01/97   ---      7.7      5.0      5.7
     POWDER RVR.PASS PILL   9480    1/01/97   ---      6.3      6.6      5.1
     SUCKER CREEK PILLOW    8880    1/01/97   ---      7.7      5.8      5.2

  BELLE FOURCHE & CHEYENNE RIVER BASINS                                
     BLIND PARK PILLOW      6870    1/01/97   ---      6.5      3.2      5.3
     DITCH CREEK            6870   12/30/96    16      3.3      2.8    999.9
     NORTH RAPID CK PILL.   6130    1/01/97   ---      7.4       --    999.9
     MALLO                  6420   12/31/96    31      6.2      3.6      3.3
     MOUNT TOM              5560   12/30/96    26      5.9      1.9      2.2
     WARREN PEAK PILLOW     6520    1/01/97   ---     10.2      3.7      5.3
     LITTLE BEAR RUN        6240   12/30/96    15      2.4       .6    999.9
   
UPPER NORTH PLATTE BASIN                                             
     DIVIDE PEAK PILLOW     8860    1/01/97   ---     13.9      8.6      9.5
     JOE WRIGHT SNOTEL     10000    1/01/97   ---     12.2     11.8     10.4
     NORTH FRENCH PILLOW   10130    1/01/97   ---     18.0     15.4     11.4
     OLD BATTLE PILLOW      9920    1/01/97   ---     24.2     13.5     14.8
     PURGATORY GULCH        8970   12/30/96    44     12.6       --       --
     ROACH SNOTEL           9400    1/01/97   ---     13.6      8.2      7.7
     SAND LAKE PILLOW      10050    1/01/97   ---     20.5     15.1     15.1
     SOUTH BRUSH PILLOW     8440    1/01/97   ---      8.5      3.8      4.8
     WEBBER SPRING PILLOW   9250    1/01/97   ---     18.9     10.3     12.2
     WILLOW CK PS SNOTEL    9500    1/01/97   ---     10.5      5.6      5.7

LOWER NORTH PLATTE, SWEETWATER & LARAMIE RIVER BASINS                
     BROOKLYN LK. PILLOW   10220    1/01/97   ---     19.3     12.0     12.0
     CASPER MTN. PILLOW     7850    1/01/97   ---     11.6      8.6      7.5
     CHRISTINA LK PILLOW    9980    1/01/97   ---     12.6      6.6      7.5
     DEADMAN HILL SNOTEL   10200    1/01/97   ---      8.6     12.4      7.9
     JOE WRIGHT SNOTEL     10000    1/01/97   ---     12.2     11.8     10.4
     LA PRELE PILLOW        8380    1/01/97   ---      8.8      6.4      4.7
     RENO HILL PILLOW       8500    1/01/97   ---     12.6      8.9      6.2
     ROACH SNOTEL           9400    1/01/97   ---     13.6      8.2      7.7
     SOUTH PASS PILLOW      9040    1/01/97   ---     16.9      9.7      8.3
     WINDY PEAK PILLOW      7900    1/01/97   ---      5.9      4.0      3.3

LITTLE SNAKE RIVER BASIN                                             
     BATTLE MTN. PILLOW     7440    1/01/97   ---      7.4      2.7      5.0
     DIVIDE PEAK PILLOW     8860    1/01/97   ---     13.9      8.6      9.5
     ELK RIVER SNOTEL       8600    1/01/97   ---     14.1      6.9      8.1
     OLD BATTLE PILLOW      9920    1/01/97   ---     24.2     13.5     14.8
     SANDSTONE PILLOW       8150    1/01/97   ---     10.2      5.3      6.2
     WHISKEY PARK PILLOW    8950    1/01/97   ---     19.4     12.2     12.8

UPPER GREEN RIVER BASIN                                              
     BIG SANDY PILLOW       9080    1/01/97   ---     12.1      8.3      6.0
     BLIND BULL PILLOW      8900    1/01/97   ---     25.4     17.8     12.5
     EAST RIM DIV PILLOW    7930    1/01/97   ---     10.8      7.4      5.7
     ELKHART PARK PILLOW    9400    1/01/97   ---     12.4      6.4      5.8
     GROS VENTRE PILLOW     8750    1/01/97   ---     14.0      9.5      6.9
     INDIAN CREEK PILLOW    9430    1/01/97   ---     22.8     16.2     11.6
     KELLEY R.S. PILLOW     8180    1/01/97   ---     15.6      9.7      6.7
     KENDALL R.S. PILLOW    7740    1/01/97   ---     16.9      9.1      5.9
     LOOMIS PARK PILLOW     8240    1/01/97   ---     16.1     11.2      7.0
     NEW FORK PILLOW        8340    1/01/97   ---     10.5      7.0      4.6
     SNIDER BASIN PILLOW    8060    1/01/97   ---     14.0     10.7      6.0
     TRIPLE PEAK  PILLOW    8500    1/01/97   ---     22.2       --     10.9

LOWER GREEN RIVER BASIN                                              
     HAMS FORK PILLOW       7840    1/01/97   ---     10.6      6.9      4.3
     HEWINTA SNOTEL         9500    1/01/97   ---      6.4S     4.3      3.9
     HICKERSON PARK SNOTE   9100    1/01/97   ---      3.5S      .7      2.6
     HOLE-IN-ROCK SNOTEL    9150    1/01/97   ---      4.1S     2.1      2.3
     INDIAN CREEK PILLOW    9430    1/01/97   ---     22.8     16.2     11.6
     KELLEY R.S. PILLOW     8180    1/01/97   ---     15.6      9.7      6.7
     SPRING CRK. PILLOW     9000    1/01/97   ---     22.1     16.6     11.6
     STEEL CREEK PARK SNO  10100    1/01/97   ---      8.4S     7.1      7.2

UPPER BEAR RIVER BASIN                                               
     HAYDEN FORK SNOTEL     9100    1/01/97   ---     10.8S     7.6      6.8
     INDIAN CREEK PILLOW    9430    1/01/97   ---     22.8     16.2     11.6
     KELLEY R.S. PILLOW     8180    1/01/97   ---     15.6      9.7      6.7
     SALT RIVER PILLOW      7600    1/01/97   ---     13.1      7.3      5.1
     TRIAL LAKE SNOTEL      9960    1/01/97   ---     20.4S     9.8     10.8

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