Click
to
hide
Water-Year
Summary
instructions
and
information
- 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
10300600 Walker River at Snyder Ln Near Mason, NV
LOCATION - Lat 38°55'16.5", long 119°11'29.7" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.09, T.12 N., R.25 E., Lyon County, NV, Hydrologic Unit 16050303, on left bank upstream from bridge, 2 mi south of Mason, and 5 mi south-southwest of Yerington.
DRAINAGE AREA - 2,400 mi². approximately.
REVISIONS HISTORY - Site previously published as "near Mason, NV".
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1974 to Sep. 1984; Sep. 2010 to current year.
GAGE - Water-stage recorder. Elevation of gage is 4426 ft above above North American Vertical Datum of 1988, from digital elevation model. Prior to 1984, located approximately 900 ft upstream at different datum.
REMARKS - Many diversions above station for irrigation. Flow regulated by Bridgeport Reservoir (station 10292500) and Topaz Reservoir (station 10297000). 10/01/2013-09/30/2014: Records fair except for estimated daily discharges, which are poor. 10/01/2014-09/30/2015: Records fair except for estimated daily discharges, which are poor. 10/01/2015-09/30/2016: Records fair except for estimated daily discharges, which are poor. 10/01/2016-09/30/2017: Records poor. 10/01/2017-09/30/2018: Records poor. 10/01/2018-09/30/2019: Records fair except for estimated discharges, which are poor. 10/01/2019-09/30/2020: Records fair except for estimated discharges, which are poor. 10/01/2020-09/30/2021: Records fair except for estimated discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,910 ft³/s, Jun. 24, 2017, gage height, 10.94 ft; minimum daily, 4.4 ft³/s (estimated), Oct. 11, 2015.
