USGS Water-Year Summary 2021
11460600 Lagunitas Creek near Point Reyes Station, CA
LOCATION - Lat 38°04'49", long 122°47'00" referenced to North American Datum of 1927, Marin County, CA, Hydrologic Unit 18050005, in Nicasio (Black) Grant, on right bank, at upstream side of road bridge, 300 ft downstream from small right-bank unnamed tributary, 1.4 mi northeast of town of Point Reyes Station, and 2.5 mi downstream from Nicasio Dam.
DRAINAGE AREA - 81.7 mi².
- WDR CA-79-2: 1975, 1978. WDR CA-82-2: 1975 (instantaneous maximum discharge), 1978 (instantaneous maximum discharge), 1980 (instantaneous maximum discharge).
PERIOD OF RECORD - October 1974 to current year.
CHEMICAL DATA: Water years 1977, 1999-2001.
WATER TEMPERATURE: Water year 1990.
SEDIMENT DATA: Water years 1990, 1999-2001, 2004-06.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 13.31 ft above NGVD of 1929.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 22,100 ft³/s, Jan. 4, 1982, gage height, 26.96 ft, from rating curve extended above 7,500 ft³/s, on basis of slope-area measurement of peak flow; minimum daily, 0.01 ft³/s, Sept. 26, 1977.