USGS Water-Year Summary 2023
08123640 Natural Dam Salt Lake near Big Spring, TX
LOCATION - Lat 32°13'12", long 101°37'45" referenced to North American Datum of 1927, Howard County, TX, Hydrologic Unit 12080006, on left bank upstream from dam on Sulphur Springs Creek, 1.5 miles north of I-20, 2.3 miles upstream from confluence with Mustang Creek, and 9.1 miles west of Big Spring.
DRAINAGE AREA - 73 mi².
PERIOD OF RECORD - Nov. 6, 1963 to Sept. 11, 1967 (miscellaneous elevation readings), Feb. 19, 1999 to Feb. 14, 2017 (daily reservoir elevation), May 31, 2018 to current year.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929
COOPERATION - Funded by Texas Water Development Board.