USGS Water-Year Summary 2021
11277200 Cherry Lake near Hetch Hetchy, CA
LOCATION - Lat 37°58'33", long 119°54'47" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.05, T.1 N., R.19 E., Tuolumne County, CA, Hydrologic Unit 18040009, Stanislaus National Forest, on upstream face of Cherry Valley Dam on Cherry Creek, 4.2 mi upstream from Eleanor Creek, 7 mi north of Early Intake, and 7.3 mi northwest of Hetch Hetchy.
DRAINAGE AREA - 117 mi².
PERIOD OF RECORD - August 1956 to current year. Prior to October 1959, published as "Lake Lloyd near Hetch Hetchy."
GAGE - Water-stage recorder. Datum of gage is 2.42 ft above NGVD of 1929 and 5.83 ft above NAVD of 1988. Prior to October 1974, datum published as at mean sea level.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 274,600 acre-ft, June 1, 2009, gage height, 4,703.17 ft; minimum since reservoir first filled, 7,660 acre-ft, Jan. 24, 1960, gage height, 4,502.1 ft. Reservoir drained for inspection in 1961, 1964, and 1989.