USGS Water-Year Summary 2023
03529500 POWELL RIVER AT BIG STONE GAP, VA
LOCATION - Lat 36°52'08", long 82°46'32" referenced to North American Datum of 1927, Wise County, VA, Hydrologic Unit 06010206, on right bank 10 ft upstream from bridge on U.S. Highway 23 at Big Stone Gap, 1 mi upstream from South Fork Powell River, 2.5 mi downstream from Pigeon Creek, and at mile 179.2.
DRAINAGE AREA - 112 mi².
REVISIONS HISTORY - WSP 1053: Drainage area. WSP 1276: 1948. WSP 1436: 1949(M), 1950(P), 1951-53(M), 1955(P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1944 to September 1959, October 1959 to September 1977 (annual maximum only), October 1978 to September 1981, October 1981 to July 1994 (annual maximum only), October 2001 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,458.70 ft NAVD 1988. Prior to Apr. 27, 1948, staff gage.