USGS Water-Year Summary 2020
03207800 LEVISA FORK AT BIG ROCK, VA
LOCATION - Lat 37°21'13", long 82°11'45" referenced to North American Datum of 1927, Buchanan County, VA, Hydrologic Unit 05070202, on left bank at Big Rock, 2,000 ft downstream from Rocklick Creek, and 2,500 ft downstream from bridge on State Highway 645.
DRAINAGE AREA - 297 mi².
PERIOD OF RECORD - October 1967 to current year.
GAGE - Water-stage recorder. Datum of gage is 865.636 ft NAVD of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Jan. 29, 1957, reached a stage of about 23.0 ft, information from local resident.