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 1999


      SNOW COURSE         ELEVATION    DATE    SNOW   WATER     LAST   AVERAGE
                                              DEPTH  CONTENT    YEAR   1961-90
-------------------------------------------------------------------------------
   SNAKE RIVER BASIN                                          
      ASTER CREEK            7750   12/30/98    59     14.9      7.9     12.8
      BASE CAMP PILLOW       7030    1/01/99   ---      8.7      5.7      7.9
      BASE CAMP              7030   12/31/98    43      8.8      5.6      8.6
      BLACK BEAR PILLOW      7950    1/01/99   ---     20.1     12.7     15.6
      BLIND BULL PILLOW      8900    1/01/99   ---     11.4      6.7     12.5
      BRYAN FLAT             6420                               10.3      ---
      CCC CAMP               7000                                4.0      5.1
      COTTONWOOD CR PILLOW   7700    1/01/99   ---      8.9      5.7      8.8
      DARBY CANYON           8250    1/06/99    42      9.7      6.8     10.0
      EAST RIM DIV PILLOW    7930    1/01/99   ---      5.3      2.8      5.7
      ELBO RANCH             7100   12/30/98    21      4.1      ---      ---
      FOUR MILE MEADOWS      7860                                5.1      ---
      GLADE CREEK            7040   12/30/98    45     10.1      7.5      9.7
      GRASSY LAKE PILLOW     7270    1/01/99   ---     15.8     11.6     14.3
      GREYS BOUNDARY         5720                                ---      4.4
      GROS VENTRE PILLOW     8750    1/01/99   ---      6.3      4.4      6.9
      GROVER PARK DIVIDE     7000                                ---      4.8
      HUCKLEBERRY DIVIDE     7300   12/29/98    42      8.4      6.2      9.3
      JACKPINE CREEK         7350    1/06/99    28      5.1      6.8      8.9
      LEWIS LAKE PILLOW      7850    1/01/99   ---     14.6     10.2     13.8
      LEWIS LAKE DIVIDE      7850   12/29/98    71     19.0     12.7     17.5
      MORAN                  6750    1/01/99    23      5.3      4.0      5.4
      PHILLIPS BENCH PILL.   8200    1/01/99   ---     12.0      7.3     11.5
      POISON MEADOWS         8500                                ---      9.7
      SALT RIVER PILLOW      7600    1/01/99   ---      5.0      3.7      5.1
      SALT RV SUMMIT         7600                                ---      6.1
      SNAKE RIVER STATION    6920   12/30/98    38      8.1      6.3      8.8
      SNOW KING MTN          7660                                ---      6.6
      SPRING CRK. PILLOW     9000    1/01/99   ---     10.7      5.7     11.6
      TETON PASS W.S.        7740                                ---      ---
      THUMB DIVIDE           7980   12/30/98    40      9.0      4.1      8.4
      TOGWOTEE PASS PILLOW   9580    1/01/99   ---     13.0      9.1     11.1
      TURPIN MEADOWS         6900                                ---      ---
      TWO OCEAN PILLOW       9240    1/01/99   ---     16.3     11.0     12.6
      WILLOW CREEK PILLOW    8450    1/01/99   ---     12.1      6.9     12.8
 
   UPPER YELLOWSTONE & MADISON RIVER BASINS                   
      BLACK BEAR PILLOW      7950    1/01/99   ---     20.1     12.7     15.6
      CANYON PILLOW          8090    1/01/99   ---      7.6      4.5      5.3
      CANYON                 8090                                ---      6.2
      FISHER CREEK PILLOW    9100    1/01/99   ---     18.0     12.9     15.6
      FISHER CREEK           9100                                ---      ---
      LAKE CAMP              7780   12/28/98    24      4.9      3.0      3.8
      LUPINE CREEK           7380   12/30/98    27      5.2      2.2      4.3
      MADISON PLT PILLOW     7750    1/01/99   ---     15.4      6.5     10.1
      MADISON PLATEAU        7750                                ---      ---
      NORRIS BASIN           7500   01/01/99    25      5.0      2.2      5.0
      N.E. ENTRANCE PILLOW   7350    1/01/99   ---      5.0      2.3      4.0
      NORTHEAST ENTRANCE     7350   01/01/99    26      4.6      2.1      3.7
      OLD FAITHFUL           7400   01/01/99    35      8.0      3.4      6.4
      PARKERS PEAK PILLOW    9400    1/01/99   ---     11.0      8.2     10.6
      SYLVAN LAKE PILLOW     8420    1/01/99   ---     11.7      7.1     10.8
      SYLVAN PASS            7100                                ---      5.9
      THUMB DIVIDE           7980   12/30/98    40      9.0      4.1      8.4
      TWENTY-ONE MILE        7150   01/01/99    40      9.0      4.2      7.3
      TWO OCEAN PILLOW       9240    1/01/99   ---     16.3     11.0     12.6
      WEST YELL'ST PILLOW    6700    1/01/99   ---      6.2      1.7      5.1
      WEST YELLOWSTONE       6700   01/01/99    27      5.8      2.6      4.8
 
   WIND RIVER BASIN                                           
      BLUE RIDGE             9620                                3.8      ---
      BURROUGHS CRK PILLOW   8750    1/01/99   ---      7.9      5.9      7.1
      BURROUGHS CREEK        8750                                ---      ---
      CASTLE CREEK           8400                                ---      ---
      COLD SPRINGS PILLOW    9630    1/01/99   ---      5.0      4.8      4.4
      DU NOIR                8760                                ---      ---
      GEYSER CREEK           8500                                ---      ---
      GRANNIER MEADOWS       8860                                ---      ---
      HOBBS PARK PILLOW     10100    1/01/99   ---      8.2      6.3      7.7
      LITTLE WARM PILLOW     9370    1/01/99   ---      6.2      3.8      5.1
      MIDDLE FORK            7420                                ---      ---
      SOUTH PASS PILLOW      9040    1/01/99   ---      7.0      5.7      8.3
      SOUTH PASS             9040                                ---      ---
      ST LAWRENCE ALT PILL   8620    1/01/99   ---      3.8      5.3      3.3
      T CROSS RANCH          7900                                ---      ---
      TOGWOTEE PASS PILLOW   9580    1/01/99   ---     13.0      9.1     11.1
      TOWNSEND CRK PILLOW    8700    1/01/99   ---      4.3      5.4      4.5
      TOWNSEND CREEK         8700                                ---      ---
      YOUNTS PEAK PILLOW     8350    1/01/99   ---     10.1      6.6      8.9
 
   BIG HORN RIVER BASIN                                       
      BALD MOUNTAIN PILLOW   9380    1/01/99   ---      8.2      9.2     10.2
      BALD MOUNTAIN          9380                                ---      ---
      BONE SPGS. PILLOW      9350    1/01/99   ---      6.7      7.9      7.8
      BONE SPRINGS DIV       9350                                ---      ---
      KIRWIN PILLOW          9550    1/01/99   ---      6.5      5.8      5.2
      MEDICINE LODGE LAKES   9340                                ---      ---
      MIDDLE POWDER PILLOW   7760    1/01/99   ---      3.3      3.7      5.7
      MIDDLE POWDER          7760                                ---      ---
      ONION GULCH            8780                                ---      ---
      OWL CREEK PILLOW       8980    1/01/99   ---      3.4      3.2      1.9
      OWL CREEK              8980                                ---      ---
      POWDER RVR.PASS PILL   9480    1/01/99   ---      4.8      4.3      5.1
      RANGER CREEK           8120                                ---      ---
      SHELL CREEK PILLOW     9580    1/01/99   ---      7.5      6.8      7.5
      SHELL CREEK            9580                                ---      ---
      TIMBER CREEK PILLOW    7950    1/01/99   ---      3.2      4.7      2.4
      TIMBER CREEK           7950                                ---      ---
      TYRELL RANGER STA.     8300                                ---      ---
 
   SHOSHONE & CLARKS FORK RIVER BASINS                        
      BEARTOOTH LK. PILLOW   9280    1/01/99   ---     11.7      9.5     11.5
      BLACKWATER PILLOW      9780    1/01/99   ---     14.9      9.8      9.9
      CARTER MOUNTAIN        7950                                ---      ---
      FISHER CREEK PILLOW    9100    1/01/99   ---     18.0     12.9     15.6
      FISHER CREEK           9100                                ---      ---
      EVENING STAR PILLOW    9200    1/01/99   ---     16.0     10.1     12.9
      MARQUETTE PILLOW       8760    1/01/99   ---      5.0      6.9      3.8
      MARQUETTE CREEK        8760                                ---      ---
      PARKERS PEAK PILLOW    9400    1/01/99   ---     11.0      8.2     10.6
      N.E. ENTRANCE PILLOW   7350    1/01/99   ---      5.0      2.3      4.0
      NORTHEAST ENTRANCE     7350   01/01/99    26      4.6      2.1      3.7
      PARKERS PEAK PILLOW    9400    1/01/99   ---     11.0      8.2     10.6
      SYLVAN PASS            7100                                ---      5.9
      SYLVAN ROAD PILLOW     7120    1/01/99   ---      7.7      3.7      5.8
      WHITE MILL PILLOW      8700    1/01/99   ---     11.3     10.4     11.4
      WHITE MILL             8700                                ---      ---
      WOLVERINE PILLOW       7650    1/01/99   ---      8.0      4.0      5.2
      WOLVERINE              7650                                ---      ---
      YOUNTS PEAK PILLOW     8350    1/01/99   ---     10.1      6.6      8.9
 
   POWDER & TONGUE RIVER BASINS                               
      BEAR TRAP PILLOW       8200    1/01/99   ---      3.0      2.5      3.7
      BEAR TRAP MDWS AM      8200                                ---      ---
      BIG GOOSE              7760                                ---      ---
      BONE SPGS. PILLOW      9350    1/01/99   ---      6.7      7.9      7.8
      BONE SPRINGS DIV       9350                                ---      ---
      BURGESS JCT. PILLOW    7880    1/01/99   ---      3.6      4.8      5.5
      BURGESS R.S.           7880                                ---      ---
      CLOUD PEAK PILLOW      9850    1/01/99   ---      6.8      5.7      5.6
      CLOUD PEAK    AM       9850                                ---      ---
      DOME LAKE PILLOW       8880    1/01/99   ---      3.9      6.1      6.3
      DOME LAKE              8880                                ---      ---
      HANSEN S.M. PILLOW     8360    1/01/99   ---      2.9      3.1      3.3
      MIDDLE POWDER PILLOW   7760    1/01/99   ---      3.3      3.7      5.7
      MIDDLE POWDER          7760                                ---      ---
      NORTH TONGUE           8450                                ---      ---
      ONION GULCH            8780                                ---      ---
      POWDER RVR.PASS PILL   9480    1/01/99   ---      4.8      4.3      5.1
      POWDER RV PASS         9480                                ---      ---
      SAWMILL DIVIDE         9260                                ---      ---
      SOLDIER PARK           8780                                ---      ---
      SOUR DOUGH             8460                                ---      ---
      SUCKER CREEK PILLOW    8880    1/01/99   ---      4.5      5.8      5.2
      SUCKER CREEK           8880                                ---      ---
      WOOD ROCK G.S.         8440                                ---      ---
 
   BELLE FOURCHE & CHEYENNE RIVER BASINS                      
      BEARLODGE DIVIDE       4680                                ---      ---
      BLIND PARK PILLOW      6870    1/01/99   ---      2.1      4.5      5.3
      DITCH CREEK            6870   12/28/98     6      1.0      1.2    999.9
      NORTH RAPID CK PILL.   6130    1/01/99   ---      2.1      4.6    999.9
      MALLO                  6420   12/31/98    10      1.8      2.5      3.3
      MOUNT TOM              5560   12/31/98     5       .5      1.5      2.2
      REUTER CANYON          6280                                ---      ---
      UPPER SPEARFISH        6500                                ---    999.9
      WARREN PEAK PILLOW     6520    1/01/99   ---      2.3      4.5      5.3
      WARREN PEAK            6520                                ---      ---
      LITTLE BEAR RUN        6240   12/28/98     3       .4      1.8    999.9
 
   UPPER NORTH PLATTE BASIN                                   
      DIVIDE PEAK PILLOW     8860    1/01/99   ---      7.3      5.7      9.5
      JOE WRIGHT SNOTEL     10000    1/01/99   ---      7.7      8.7     10.4
      MOSS LAKE              9800                                ---      ---
      NORTH BARRETT CREEK    9400                                ---      ---
      NORTH FRENCH PILLOW   10130    1/01/99   ---     11.6     10.1     11.4
      OLD BATTLE PILLOW      9920    1/01/99   ---     10.9      9.0     14.8
      PURGATORY GULCH        8970                                ---      ---
      ROACH SNOTEL           9400    1/01/99   ---      6.1      5.8      7.7
      RYAN PARK              8400                                ---      ---
      SAND LAKE PILLOW      10050    1/01/99   ---     12.6     10.4     15.1
      SOUTH BRUSH PILLOW     8440    1/01/99   ---      3.8      3.1      4.8
      WEBBER SPRING PILLOW   9250    1/01/99   ---      7.0      6.2     12.2
      WILLOW CK PS SNOTEL    9500    1/01/99   ---      4.8      3.2      5.7
 
   LOWER NORTH PLATTE, SWEETWATER & LARAMIE RIVER BASINS      
      ALBANY                 9400                                ---      ---
      BOXELDER               7280                                ---      ---
      BROOKLYN LK. PILLOW   10220    1/01/99   ---      7.0      6.5     12.0
      BUCK CREEK             7960                                ---      ---
      CASPER MTN. PILLOW     7850    1/01/99   ---      3.7      6.7      7.5
      DEADMAN HILL SNOTEL   10200    1/01/99   ---      8.6      7.6      7.9
      DEADMAN HILL          10200                                ---      ---
      FOXPARK                9060                                ---      ---
      GRANNIER MEADOWS       8860                                ---      ---
      HAIRPIN TURN           9480                                ---      ---
      JOE WRIGHT SNOTEL     10000    1/01/99   ---      7.7      8.7     10.4
      LA BONTE               8450                                ---      ---
      LA PRELE PILLOW        8380    1/01/99   ---      1.1      3.7      4.7
      LARSEN CREEK           9020                                ---      ---
      LIBBY LODGE            8750                                ---      ---
      POLE MOUNTAIN          8700                                ---      ---
      RENO HILL PILLOW       8500    1/01/99   ---      5.2      6.5      6.2
      ROACH SNOTEL           9400    1/01/99   ---      6.1      5.8      7.7
      SOUTH PASS PILLOW      9040    1/01/99   ---      7.0      5.7      8.3
      SOUTH PASS             9040                                ---      ---
      WINDY PEAK PILLOW      7900    1/01/99   ---      1.6      2.9      3.3
 
   LITTLE SNAKE RIVER BASIN                                   
      BATTLE MTN. PILLOW     7440    1/01/99   ---      3.7      2.2      5.0
      BUTTER HILL            7880                                ---      ---
      DIVIDE PEAK PILLOW     8860    1/01/99   ---      7.3      5.7      9.5
      ELK RIVER SNOTEL       8600    1/01/99   ---      3.6      4.3      8.1
      HASKINS CREEK          8980                                ---      ---
      OLD BATTLE PILLOW      9920    1/01/99   ---     10.9      9.0     14.8
      SANDSTONE PILLOW       8150    1/01/99   ---      4.2      3.5      6.2
      WHISKEY PARK PILLOW    8950    1/01/99   ---      7.2      6.4     12.8
 
   UPPER GREEN RIVER BASIN                                    
      BIG PARK               8620                                ---      ---
      BIG SANDY PILLOW       9080    1/01/99   ---      7.0      3.8      6.0
      BLIND BULL PILLOW      8900    1/01/99   ---     11.4      6.7     12.5
      EAST RIM DIV PILLOW    7930    1/01/99   ---      5.3      2.8      5.7
      ELKHART PARK PILLOW    9400    1/01/99   ---      5.6      3.8      5.8
      GROS VENTRE PILLOW     8750    1/01/99   ---      6.3      4.4      6.9
      INDIAN CREEK PILLOW    9430    1/01/99   ---     10.0      6.3     11.6
      KELLEY R.S. PILLOW     8180    1/01/99   ---      5.8      3.9      6.7
      KENDALL R.S. PILLOW    7740    1/01/99   ---      6.0      3.7      5.9
      LOOMIS PARK PILLOW     8240    1/01/99   ---      6.9      3.7      7.0
      NEW FORK PILLOW        8340    1/01/99   ---      4.9      2.9      4.6
      POCKET CREEK           9350                                ---      ---
      POISON MEADOWS         8500                                ---      9.7
      ROWDY CREEK            8300                                ---      ---
      SNIDER BASIN PILLOW    8060    1/01/99   ---      5.7      3.0      6.0
      TRIPLE PEAK  PILLOW    8500    1/01/99   ---     10.9      6.0     10.9
      TRIPLE PEAK            8500                                ---      9.6
 
   LOWER GREEN RIVER BASIN                                    
      BIG PARK               8620                                ---      ---
      BLACK'S FORK JUNCTN    8930                                ---      ---
      HAMS FORK PILLOW       7840    1/01/99   ---      4.0      2.9      4.3
      HENRY'S FORK          10000                                ---      ---
      HEWINTA SNOTEL         9500    1/01/99   ---      3.1      4.3      3.9
      HICKERSON PARK SNOTE   9100    1/01/99   ---      2.3      5.6      2.6
      HOLE-IN-ROCK SNOTEL    9150    1/01/99   ---      2.9      3.8      2.3
      INDIAN CREEK PILLOW    9430    1/01/99   ---     10.0      6.3     11.6
      KELLEY R.S. PILLOW     8180    1/01/99   ---      5.8      3.9      6.7
      SPRING CRK. PILLOW     9000    1/01/99   ---     10.7      5.7     11.6
      STEEL CREEK PARK SNO  10100    1/01/99   ---      5.0      6.1      7.2
 
   UPPER BEAR RIVER BASIN                                     
      BIG PARK               8620                                ---      ---
      BURT'S-MILLER RANCH    7900                                ---      ---
      HAYDEN FORK SNOTEL     9100    1/01/99   ---      4.8      4.0      6.8
      INDIAN CREEK PILLOW    9430    1/01/99   ---     10.0      6.3     11.6
      KELLEY R.S. PILLOW     8180    1/01/99   ---      5.8      3.9      6.7
      SALT RIVER PILLOW      7600    1/01/99   ---      5.0      3.7      5.1
      SALT RV SUMMIT         7600                                ---      6.1
      STILLWATER CAMP        8550                                ---      ---
      TRIAL LAKE SNOTEL      9960    1/01/99   ---      5.0      5.0     10.8
      TRIAL LAKE             9960                                ---      ---

To January 1999 Basin Outlook Report Contents Page