PROVISIONAL DATA SUBJECT TO REVISION

LOCATION.--Lat 43° 51'30", long 110° 35'09", in SW1/4 SE1/4 sec.18, 
T.45 N., R.114 W., Teton County, Grand Teton National Park, Hydrologic Unit 17040101, 
on left bank 1,000 ft downstream from Jackson Lake Dam, 4.1 mi west of Moran, and 
at mile 988.7.

DRAINAGE AREA.--807 mi2.  Mean elevation, 8,040 ft.

PERIOD OF RECORD.--September 1903 to current year. Monthly discharge only for some 
periods, published in WSP 1317. Published as "South Fork Snake River at Moran" prior 
to October 1910 and as "Snake River at Moran" October 1910 to September 1968.

REVISED RECORDS.--WSP 1217: 1944(m). WSP 1347: 1906-10. WDR Idaho 1974: Drainage area.

GAGE.--Datum of gage is 6,727.84 ft above NGVD of 1929 (levels by U.S. Bureau of 
Reclamation). Prior to June 13, 1917, nonrecording gage, and June 14, 1917 to 
May 20, 1940, water-stage recorder, at site 1.5 mi downstream at different datums.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,100 ft3/s June 12, 1918, 
gage height, 10.41 ft, site and datum then in use; 
maximum gage height, 10.96 ft, June 11, 1997; minimum daily, 0.30 ft3/s Oct. 28, 1969.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood during early June 1894 was considerably 
higher than that of June 12, 1918.

Station operated in cooperation with Water District No.1.