USGS Water-Year Summary 2020
02236160 SILVER GLEN SPRINGS NEAR ASTOR, FL
LOCATION - Lat 29°14'40", long 81°38'34" referenced to North American Datum of 1927, in SE 1/4 sec.25, T.14 S., R.26 E., Marion County, FL, Hydrologic Unit 03080101, on right bank of spring pool, 0.5 mi upstream from Lake George, and 9.1 mi northwest of Astor, FL.
DRAINAGE AREA - Indeterminate.
PERIOD OF RECORD - March 1931 to September 2002 (miscellaneous discharge measurements), November 2002 to current year.
GAGE - Water-stage recorder and data-collection platform. Datum of gage is NGVD of 1929 and 1.28 ft below NAVD of 1988. Prior to October 2002, non-recording gage at same site and datum.
COOPERATION - This gage is monitored in cooperation with the Florida Department of Environmental Protection and the St. Johns River Water Management District.