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LOCATION.--Lat 44° 05'56", long 110° 40'03", in Hydrologic Unit 17040101,
Grand Teton National Park, on left bank 50 ft upstream from State Highway 89 bridge,
2 mi downstream from the south boundary of Yellowstone National Park, 600 ft
downstream from the confluence with Sheffield Creek.
DRAINAGE AREA.--486 mi2.
PERIOD OF RECORD.--October 1983 to current year. Prior to 1988 water year, published
as station 13010200.
GAGE.--Water-stage recorder. Datum of the gage is 6,801.61 ft above NGVD of 1929,
(levels by U.S. Coast and Geodetic Survey). A nonrecording cantilever chain gage
was used from 1913-18 at a site 2.5 mi upstream at a different datum. In 1918,
an auxiliary chain gage was installed at the current site and read periodically.
Water-stage recorder installed July 1921 at the current site at a different datum
and operated until July 1925. Records probably not comparable.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 11,300 ft3/s June 5, 1996;
maximum gage height, 10.75 ft, June 5. 1996, from backwater;
minimum, 158 ft3/s Aug. 30, Sept. 3, 2001, gage height, 2.04 ft.
Station operated in cooperation with Water District No.1.
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