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USGS Water-Year Summary 2024
13023000 GREYS RIVER ABOVE RESERVOIR, NEAR ALPINE, WY
LOCATION - Lat 43°08'35", long 110°58'37" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SE 1/4 sec.34, T.37 N., R.118 W., Lincoln County, WY, Hydrologic Unit 17040103, Ferry Peak quad., on right bank at Bridge Campground, 3.6 mi. southeast of Alpine, 3.0 mi. upstream from maximum flowline of Palisades Reservoir.
DRAINAGE AREA - 448 mi².
REVISIONS HISTORY - Daily discharge, Nov. 23, 2020, has been revised. The peak qualifier code for the 1918 water year peak was removed on 10/29/2024 following re-examination of the record.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July to September 1917, June to September 1918, March 1937 to March 1939, October 1953 to current year. Published as "Greys River near Alpine, Idaho", 1917-1918, and as "Greys River near Alpine, Wyo.", 1937-39.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is arbitrary. July 6 to Sept. 30, 1917, and June 4 to Sept. 30, 1918, nonrecording gage, and Mar. 17, 1937 to Mar. 31, 1939, water-stage recorder, at site 1.8 mi. downstream, and Oct. 1953 to Sept. 22, 1965, water-stage recorder at site 1 mi. downstream at different datums.
REMARKS - Less than 500 acres irrigated by diversions from Greys River and tributaries above station. Data was unapproved on Oct. 29, 2024, to remove historical qualifier from the 1918 peak and then set back to approved. Gage was operated in 1918; see WSP 483 and station manuscript.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge observed, 7,230 ft³/s June 19, 1971, gage height, 6.33 ft; maximum gage height observed, 19.1 ft, former site and datum, about Dec. 18, 1965, backwater from ice; minimum, 84 ft³/s Feb. 17, 1986, result of current meter measurement.
