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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
12335500 NEVADA CREEK ABOVE RESERVOIR, NEAR HELMVILLE, MT
LOCATION - Lat 46°46'40.00", long 112°46'04.03" referenced to North American Datum of 1983, in SW 1/4 NW 1/4 SW 1/4 sec.20, T.12 N., R.9 W., Powell County, MT, Hydrologic Unit 17010203, on right bank 0.7 mi upstream from Nevada Lake, 1.1 mi downstream from Gallagher Creek, 11 mi southeast of Helmville, and at river mile 34.5.
DRAINAGE AREA - 119 mi².
REVISIONS HISTORY - WDR MT-2013: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 1939 to current year. Seasonal records only for water year 2007. Prior to October 2001, published as "near Finn."
GAGE - Water-stage recorder. Elevation of gage is 4,640 ft, referenced to the North American Vertical Datum of 1988. Prior to Apr. 30, 1942, nonrecording gage at site 0.1 mi, downstream at different elevation. Apr. 30, 1942 to July 26, 1953, water-stage recorder at site 0.2 mi downstream at different elevation. July 26, 1953, to Nov. 6, 1978, water-stage recorder at site 0.8 mi upstream at different elevation.
REMARKS - Diversions for irrigation occur upstream from station.
WATER-QUALITY RECORDS
PERIOD OF RECORD - April 1994 to January 2000, May 2003 to current year.
REMARKS -
