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USGS Water-Year Summary 2024
10336500 Pyramid Lake Near Nixon, NV
LOCATION - Lat 39°59'05", long 119°30'00" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.03, T.24 N., R.22 E., Washoe County, NV, Hydrologic Unit 16050103, 0.25 mi north of the Pyramid, 1.6 mi northeast of Anaho Island, and 13 mi northwest of Nixon.
DRAINAGE AREA - 2,720 mi².
REVISIONS HISTORY - WSP 880: 1934-38 (bench mark). WSP 1090: 1926 (M). WRD NV-67-1: 1966.
SURFACE-WATER RECORDS
GAGE - Non-recording gage. Datum of gage is 3,940.29 ft, above National Geodetic Vertical Datum of 1929 (U.S. Coast and Geodetic Survey Bench Mark N-21), supplementary adjustment of 1956. Prior to Jan. 1934, elevations were determined from Bench Mark No. 1 of General Lake Office using elevation of 3,882.26 ft, adjustment of 1912; to convert these records to present datum, add 0.81 ft Jan. 1934 to Sep. 1955 elevations were determined from Bench Mark N-21 using elevations of 3,940.04 ft, datum of 1929; to convert these records to present datum add 0.25 ft Oct. 1955 to Aug. 1968, non recording gages along southwest lake shore at present datum, Sep. 1986 to current year, nonrecording gage along east lake shore near the Pyramid.
REMARKS - Truckee Canal diverts water out of the basin to Lahontan Reservoir (station 10312100). Elevations are given to the nearest 0.1 ft and contents to four significant figures to reflect trends of change. Any single observation, however, may be affected by wind and seiche movements on the lake surface. Elevations published in WSP 1314 for 1867 and 1871 (3,875.9 and 3,884.9 ft, respectively) have been revised to 3,867 and 3,876 ft, respectively, on the basis the data and conclusiions of Hardman and Venstrom (American Geophysical Union Transactions, 1941, p. 71-90), and Harding (University of California Archives Report 16, 1965). Reservoir elevations are single observations made on that day.
