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USGS Water-Year Summary 2024
11063510 Cajon Creek below Lone Pine Creek, near Keenbrook, CA
LOCATION - Lat 34°15'48", long 117°27'58" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 NW 1/4 sec.13, T.2 N., R.6 W., San Bernardino County, CA, Hydrologic Unit 18070203, on left bank, 0.25 mi downstream from Lone Pine Creek, and 0.95 mi north of Keenbrook.
DRAINAGE AREA - 56.5 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1971 to September 1977, October 1983 to current year.
GAGE - Water-stage recorder and concrete control. Datum of gage is 2,567.08 ft above NAVD of 1988. Oct. 1, 1971, to Sept. 30, 1977, at site 0.25 mi upstream at abandoned diversion dam at different datum.
REMARKS - Concrete control installed Oct. 1, 1987. No regulation or diversion upstream from station. See schematic diagram of Santa Ana River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 7,628 ft³/s, February 17, 2017, gage height, 8.73 ft, on basis of the rating; minimum daily discharge, 0.78 ft³/s, January 28, 2020.
