USGS Water-Year Summary 2020
02387520 OOSTANAULA RIVER AT CALHOUN, GA
LOCATION - Lat 34°31'08", long 84°57'16" referenced to North American Datum of 1983, Gordon County, GA, Hydrologic Unit 03150103, 6.5 miles downstream of base gage, 5.5 miles below confluence of Coosawattee River and Conasauga River.
DRAINAGE AREA - 1,624 mi².
PERIOD OF RECORD -
October 1998 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 595.5 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Navigation Satellite System equipment using GEOID12A).
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
PERIOD OF RECORD - May 2001 to current year.
INSTRUMENTATION - Tipping-bucket raingage.