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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
03474000 MIDDLE FORK HOLSTON RIVER AT SEVEN MILE FORD, VA
LOCATION - Lat 36°48'26", long 81°37'20" referenced to North American Datum of 1927, Smyth County, VA, Hydrologic Unit 06010102, on right bank at downstream side of bridge on U.S. Highway 11 at Seven Mile Ford, 0.3 mi upstream from Meade Creek, 3.3 mi downstream from Walker Creek, and at mile 32.1.
DRAINAGE AREA - 132 mi².
REVISIONS HISTORY - WSP 973: 1942(m). WSP 1306: 1947(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1942 to December 1981, January 1982 to September 1987 (annual maximum only), October 1987 to September 1989, October 1989 to September 1996 (annual maximum only), October 1996 to current year.
GAGE - Water-stage recorder and concrete control. Datum of gage is 1,959.67 ft NAVD of 1988.
COOPERATION - Gage-height record of extremes were provided by Tennessee Valley Authority for the period Jan. 1, 1982, to Sept. 30, 1987, and Oct. 1, 1989 to Sept. 30, 1996.
REMARKS - Prior to April 1977, some diurnal fluctuation at low flow caused by mill 9 mi above station. Since May 1936, flow occasionally regulated by the filling or draining of Hungry Mother Lake on Hungry Mother Creek, capacity, about 1,600 acre-ft. Tennessee Valley Authority gage-height data logger at station, called at 6-hour intervals by computer at Knoxville, TN. Several measurements of water temperature were made during the year. Water-quality records for some prior periods have been made at this location.
