USGS Water-Year Summary 2019
02153550 NINETYNINE ISLAND RESERVOIR BELOW CHEROKEE FALLS, SC
LOCATION - Lat 35°01'54", long 81°29'37" referenced to North American Datum of 1927, Cherokee County, SC, Hydrologic Unit 03050105, attached to the rail on the face of the dam directly in front of the stairs, 5.0 mi southwest of Blacksburg and 5.0 mi east of Gaffney.
DRAINAGE AREA - 1,550 mi².
PERIOD OF RECORD - October 1998 to current year.
GAGE - Data collection platform. Datum of gage is 411.46 ft above NGVD of 1929 (from Duke Power Company benchmark).
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 107.29 ft Sep. 8, 2004; minimum elevation, 94.73 ft, November 2, 2017.