B A S I N   S U M M A R Y   OF
                        S N O W    C O U R S E    D A T A      
                                   JANUARY 2000


      SNOW COURSE         ELEVATION    DATE    SNOW   WATER     LAST   AVERAGE
                                              DEPTH  CONTENT    YEAR   1961-90
-------------------------------------------------------------------------------
 
   SNAKE RIVER BASIN                                          
      ASTER CREEK            7750   12/29/99    29      8.2     14.9     12.8
      BASE CAMP PILLOW       7030    1/01/00   ---      6.1      8.8      7.9
      BASE CAMP              7030   12/30/99    26      7.0      8.8      8.6
      BLACK BEAR PILLOW      7950    1/01/00   ---     12.3     20.1     15.6
      BLIND BULL PILLOW      8900    1/01/00   ---      8.0     11.4     12.5
      BRYAN FLAT             6420                                ---      ---
      CCC CAMP               7000                                ---      5.1
      COTTONWOOD CR PILLOW   7700    1/01/00   ---      6.2      8.9      8.8
      DARBY CANYON           8250                                9.7     10.0
      EAST RIM DIV PILLOW    7930    1/01/00   ---      2.8      5.3      5.7
      ELBO RANCH             7100   12/30/99    15      3.1      4.1      ---
      FOUR MILE MEADOWS      7860                                ---      ---
      GLADE CREEK            7040   12/30/99    25      6.7     10.1      9.7
      GRASSY LAKE PILLOW     7270    1/01/00   ---      9.9     15.8     14.3
      GREYS BOUNDARY         5720                                ---      4.4
      GROS VENTRE PILLOW     8750    1/01/00   ---      2.4      6.3      6.9
      GROVER PARK DIVIDE     7000                                ---      4.8
      HUCKLEBERRY DIVIDE     7300   12/29/99    26      6.6      8.4      9.3
      JACKPINE CREEK         7350                                5.1      8.9
      LEWIS LAKE PILLOW      7850    1/01/00   ---      8.6     14.6     13.8
      LEWIS LAKE DIVIDE      7850   12/29/99    41     12.5     19.1     17.5
      MORAN                  6750   12/30/99    17      4.0      5.3      5.4
      PHILLIPS BENCH PILL.   8200    1/01/00   ---      6.7     12.0     11.5
      POISON MEADOWS         8500                                ---      9.7
      SALT RIVER PILLOW      7600    1/01/00   ---      3.3      5.0      5.1
      SNAKE RIVER STATION    6920   12/29/99    23      5.0      8.1      8.8
      SNOW KING MTN          7660                                ---      6.6
      SPRING CRK. PILLOW     9000    1/01/00   ---      7.0     10.7     11.6
      TETON PASS W.S.        7740                                ---      ---
      THUMB DIVIDE           7980   12/29/99    18      4.2      9.0      8.4
      TOGWOTEE PASS PILLOW   9580    1/01/00    26      6.1     13.0     11.1
      TURPIN MEADOWS         6900                                ---      ---
      TWO OCEAN PILLOW       9240    1/01/00   ---      7.8     16.3     12.6
      WILLOW CREEK PILLOW    8450    1/01/00   ---      7.7     12.1     12.8
 
   UPPER YELLOWSTONE & MADISON RIVER BASINS                   
      BLACK BEAR PILLOW      7950    1/01/00   ---     12.3     20.1     15.6
      CANYON PILLOW          8090    1/01/00   ---      5.0      7.6      5.3
      FISHER CREEK PILLOW    9100    1/01/00   ---     14.0     18.0     15.6
      FISHER CREEK           9100                                ---      ---
      LAKE CAMP              7780   12/29/99    16      3.3      4.9      3.8
      LUPINE CREEK           7380   12/29/99    16      4.3      5.2      4.3
      MADISON PLT PILLOW     7750    1/01/00   ---      6.6     15.4     10.1
      MADISON PLATEAU        7750                                ---      ---
      NORRIS BASIN           7500   12/21/99    21      5.4      5.0      5.0
      N.E. ENTRANCE PILLOW   7350    1/01/00   ---      5.1      5.0      4.0
      NORTHEAST ENTRANCE     7350   01/05/00    27      5.2      4.6      3.7
      OLD FAITHFUL           7400   12/30/99    18      3.5      8.1      6.4
      PARKERS PEAK PILLOW    9400    1/01/00   ---      7.1     11.0     10.6
      SYLVAN LAKE PILLOW     8420    1/01/00   ---      7.4     11.7     10.8
      THUMB DIVIDE           7980   12/29/99    18      4.2      9.0      8.4
      TWENTY-ONE MILE        7150   12/30/99    24      5.5      9.0      7.3
      TWO OCEAN PILLOW       9240    1/01/00   ---      7.8     16.3     12.6
      WEST YELL'ST PILLOW    6700    1/01/00   ---      3.2      6.2      5.1
      WEST YELLOWSTONE       6700   12/29/99    16      3.0      5.8      4.8
 
   WIND RIVER BASIN                                           
      BLUE RIDGE             9620                                ---      ---
      BURROUGHS CRK PILLOW   8750    1/01/00   ---      4.0      7.9      7.1
      BURROUGHS CREEK        8750                                ---      ---
      CASTLE CREEK           8400                                ---      ---
      COLD SPRINGS PILLOW    9630    1/01/00   ---      1.5      5.0      4.4
      DU NOIR                8760                                ---      ---
      GEYSER CREEK           8500                                ---      ---
      GRANNIER MEADOWS       8860                                ---      ---
      HOBBS PARK PILLOW     10100    1/01/00   ---      3.0      8.2      7.7
      LITTLE WARM PILLOW     9370    1/01/00   ---      2.7      6.2      5.1
      MIDDLE FORK            7420                                ---      ---
      SOUTH PASS PILLOW      9040    1/01/00   ---      3.2      7.0      8.3
      ST LAWRENCE ALT PILL   8620    1/01/00   ---       .8      3.8      3.3
      T CROSS RANCH          7900                                ---      ---
      TOGWOTEE PASS PILLOW   9580    1/01/00    26      6.1     13.0     11.1
      TOWNSEND CRK PILLOW    8700    1/01/00   ---      1.5      4.3      4.5
      YOUNTS PEAK PILLOW     8350    1/01/00   ---      5.0     10.1      8.9
 
   BIG HORN RIVER BASIN                                       
      BALD MOUNTAIN PILLOW   9380    1/01/00   ---      9.6      8.2     10.2
      BONE SPGS. PILLOW      9350    1/01/00   ---      7.0      6.7      7.8
      KIRWIN PILLOW          9550    1/01/00   ---      2.5      6.5      5.2
      MEDICINE LODGE LAKES   9340                                ---      ---
      MIDDLE POWDER PILLOW   7760    1/01/00   ---      4.6      3.3      5.7
      MIDDLE POWDER          7760                                ---      ---
      ONION GULCH            8780                                ---      ---
      OWL CREEK PILLOW       8980    1/01/00   ---       .7      3.4      1.9
      POWDER RVR.PASS PILL   9480    1/01/00   ---      4.3      4.8      5.1
      RANGER CREEK           8120                                ---      ---
      SHELL CREEK PILLOW     9580    1/01/00   ---      7.1      7.5      7.5
      TIMBER CREEK PILLOW    7950    1/01/00   ---       .4      3.2      2.4
      TYRELL RANGER STA.     8300                                ---      ---
 
   SHOSHONE & CLARKS FORK RIVER BASINS                        
      BEARTOOTH LK. PILLOW   9280    1/01/00   ---      9.6     11.7     11.5
      BLACKWATER PILLOW      9780    1/01/00   ---      5.8     14.9      9.9
      CARTER MOUNTAIN        7950                                ---      ---
      FISHER CREEK PILLOW    9100    1/01/00   ---     14.0     18.0     15.6
      FISHER CREEK           9100                                ---      ---
      EVENING STAR PILLOW    9200    1/01/00   ---      9.7     16.0     12.9
      MARQUETTE PILLOW       8760    1/01/00   ---      1.9      5.0      3.8
      PARKERS PEAK PILLOW    9400    1/01/00   ---      7.1     11.0     10.6
      N.E. ENTRANCE PILLOW   7350    1/01/00   ---      5.1      5.0      4.0
      NORTHEAST ENTRANCE     7350   01/05/00    27      5.2      4.6      3.7
      PARKERS PEAK PILLOW    9400    1/01/00   ---      7.1     11.0     10.6
      SYLVAN ROAD PILLOW     7120    1/01/00   ---      6.0      7.7      5.8
      WHITE MILL PILLOW      8700    1/01/00   ---     10.6     11.3     11.4
      WHITE MILL             8700                                ---      ---
      WOLVERINE PILLOW       7650    1/01/00   ---      5.9      8.0      5.2
      YOUNTS PEAK PILLOW     8350    1/01/00   ---      5.0     10.1      8.9
 
   POWDER & TONGUE RIVER BASINS                               
      BEAR TRAP PILLOW       8200    1/01/00   ---      1.8      3.0      3.7
      BIG GOOSE              7760                                ---      ---
      BONE SPGS. PILLOW      9350    1/01/00   ---      7.0      6.7      7.8
      BURGESS JCT. PILLOW    7880    1/01/00   ---      4.4      3.6      5.5
      CLOUD PEAK PILLOW      9850    1/01/00   ---      7.0      6.8      5.6
      DOME LAKE PILLOW       8880    1/01/00   ---      4.2      5.5      6.3
      HANSEN S.M. PILLOW     8360    1/01/00   ---      2.2      2.9      3.3
      MIDDLE POWDER PILLOW   7760    1/01/00   ---      4.6      3.3      5.7
      MIDDLE POWDER          7760                                ---      ---
      NORTH TONGUE           8450                                ---      ---
      ONION GULCH            8780                                ---      ---
      POWDER RVR.PASS PILL   9480    1/01/00   ---      4.3      4.8      5.1
      SAWMILL DIVIDE         9260                                ---      ---
      SOLDIER PARK           8780                                ---      ---
      SOUR DOUGH             8460                                ---      ---
      SUCKER CREEK PILLOW    8880    1/01/00   ---      4.6      4.5      5.2
      SUCKER CREEK           8880                                ---      ---
      WOOD ROCK G.S.         8440                                ---      ---
 
   BELLE FOURCHE & CHEYENNE RIVER BASINS                      
      BEARLODGE DIVIDE       4680                                ---      ---
      BLIND PARK PILLOW      6870    1/01/00   ---      3.2      2.1      5.3
      DITCH CREEK            6870                                1.0      ---
      NORTH RAPID CK PILL.   6130    1/01/00   ---      2.9      2.1      ---
      MALLO                  6420                                1.8      3.3
      MOUNT TOM              5560                                 .5      2.2
      REUTER CANYON          6280                                ---      ---
      UPPER SPEARFISH        6500                                ---      ---
      WARREN PEAK PILLOW     6520    1/01/00   ---      4.0      2.3      5.3
      LITTLE BEAR RUN        6240                                 .4      ---
 
   UPPER NORTH PLATTE BASIN                                   
      DIVIDE PEAK PILLOW     8860    1/01/00   ---      6.6      7.3      9.5
      JOE WRIGHT SNOTEL     10000    1/01/00   ---      7.1      7.7     10.4
      MOSS LAKE              9800                                ---      ---
      NORTH BARRETT CREEK    9400                                ---      ---
      NORTH FRENCH PILLOW   10130    1/01/00   ---     10.3     11.6     11.4
      OLD BATTLE PILLOW      9920    1/01/00   ---      7.2     10.9     14.8
      PURGATORY GULCH        8970                                ---      ---
      ROACH SNOTEL           9400    1/01/00   ---      5.0      6.1      7.7
      RYAN PARK              8400                                ---      ---
      SAND LAKE PILLOW      10050    1/01/00   ---      8.7     12.6     15.1
      SOUTH BRUSH PILLOW     8440    1/01/00   ---      5.3      3.8      4.8
      WEBBER SPRING PILLOW   9250    1/01/00   ---      6.2      7.0     12.2
      WILLOW CK PS SNOTEL    9500    1/01/00   ---      3.7      4.8      5.7
 
   LOWER NORTH PLATTE, SWEETWATER & LARAMIE RIVER BASINS      
      ALBANY                 9400                                ---      ---
      BOXELDER               7280                                ---      ---
      BROOKLYN LK. PILLOW   10220    1/01/00   ---      5.7      7.0     12.0
      BUCK CREEK             7960                                ---      ---
      CASPER MTN. PILLOW     7850    1/01/00   ---      6.3      3.7      7.5
      DEADMAN HILL SNOTEL   10200    1/01/00   ---      3.2      8.6      7.9
      DEADMAN HILL          10200                                ---      ---
      FOXPARK                9060                                ---      ---
      GRANNIER MEADOWS       8860                                ---      ---
      HAIRPIN TURN           9480                                ---      ---
      JOE WRIGHT SNOTEL     10000    1/01/00   ---      7.1      7.7     10.4
      LA BONTE               8450                                ---      ---
      LA PRELE PILLOW        8380    1/01/00   ---      3.4      1.1      4.7
      LARSEN CREEK           9020                                ---      ---
      LIBBY LODGE            8750                                ---      ---
      POLE MOUNTAIN          8700                                ---      ---
      RENO HILL PILLOW       8500    1/01/00   ---      5.2      5.2      6.2
      ROACH SNOTEL           9400    1/01/00   ---      5.0      6.1      7.7
      SOUTH PASS PILLOW      9040    1/01/00   ---      3.2      7.0      8.3
      WINDY PEAK PILLOW      7900    1/01/00   ---      1.9      1.6      3.3
 
   LITTLE SNAKE RIVER BASIN                                   
      BATTLE MTN. PILLOW     7440    1/01/00   ---      3.5      3.7      5.0
      BUTTER HILL            7880                                ---      ---
      DIVIDE PEAK PILLOW     8860    1/01/00   ---      6.6      7.3      9.5
      ELK RIVER SNOTEL       8600    1/01/00   ---      5.4      3.6      8.1
      HASKINS CREEK          8980                                ---      ---
      OLD BATTLE PILLOW      9920    1/01/00   ---      7.2     10.9     14.8
      SANDSTONE PILLOW       8150    1/01/00   ---      5.0      4.2      6.2
      WHISKEY PARK PILLOW    8950    1/01/00   ---      8.1      7.2     12.8
 
   UPPER GREEN RIVER BASIN                                    
      BIG PARK               8620                                ---      ---
      BIG SANDY PILLOW       9080    1/01/00   ---      2.5      7.0      6.0
      BLIND BULL PILLOW      8900    1/01/00   ---      8.0     11.4     12.5
      EAST RIM DIV PILLOW    7930    1/01/00   ---      2.8      5.3      5.7
      ELKHART PARK PILLOW    9400    1/01/00   ---      3.2      5.6      5.8
      GROS VENTRE PILLOW     8750    1/01/00   ---      2.4      6.3      6.9
      INDIAN CREEK PILLOW    9430    1/01/00   ---      5.9     10.0     11.6
      KELLEY R.S. PILLOW     8180    1/01/00   ---      3.0      5.8      6.7
      KENDALL R.S. PILLOW    7740    1/01/00   ---      3.9      6.0      5.9
      LOOMIS PARK PILLOW     8240    1/01/00   ---      5.0      6.9      7.0
      NEW FORK PILLOW        8340    1/01/00   ---      3.0      4.9      4.6
      POCKET CREEK           9350                                ---      ---
      POISON MEADOWS         8500                                ---      9.7
      ROWDY CREEK            8300                                ---      ---
      SNIDER BASIN PILLOW    8060    1/01/00   ---      3.2      5.7      6.0
      TRIPLE PEAK  PILLOW    8500    1/01/00   ---      7.3     10.9     10.9
 
   LOWER GREEN RIVER BASIN                                    
      BIG PARK               8620                                ---      ---
      BLACK'S FORK JUNCTN    8930                                ---      ---
      HAMS FORK PILLOW       7840    1/01/00   ---      2.6      4.0      4.3
      HENRY'S FORK          10000                                ---      ---
      HEWINTA SNOTEL         9500    1/01/00   ---      2.4      3.1      3.9
      HICKERSON PARK SNOTE   9100    1/01/00   ---      2.1      2.3      2.6
      HOLE-IN-ROCK SNOTEL    9150    1/01/00   ---      2.1      2.9      2.3
      INDIAN CREEK PILLOW    9430    1/01/00   ---      5.9     10.0     11.6
      KELLEY R.S. PILLOW     8180    1/01/00   ---      3.0      5.8      6.7
      SPRING CRK. PILLOW     9000    1/01/00   ---      7.0     10.7     11.6
      STEEL CREEK PARK SNO  10100    1/01/00   ---      4.8      5.0      7.2
 
   UPPER BEAR RIVER BASIN                                     
      BIG PARK               8620                                ---      ---
      BURT'S-MILLER RANCH    7900                                ---      ---
      HAYDEN FORK SNOTEL     9100    1/01/00   ---      3.9      4.8      6.8
      INDIAN CREEK PILLOW    9430    1/01/00   ---      5.9     10.0     11.6
      KELLEY R.S. PILLOW     8180    1/01/00   ---      3.0      5.8      6.7
      SALT RIVER PILLOW      7600    1/01/00   ---      3.3      5.0      5.1
      STILLWATER CAMP        8550                                ---      ---
      TRIAL LAKE SNOTEL      9960    1/01/00   ---      5.0      5.0     10.8
      TRIAL LAKE             9960                                ---      ---

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