USGS Water-Year Summary 2020
01601420 HOFFMAN DRAINAGE TUNNEL AT CLARYSVILLE, MD
LOCATION - Lat 39°38'18.0", long 78°53'33.2" referenced to North American Datum of 1983, Allegany County, MD, Hydrologic Unit 02070002, on right bank 100 ft upstream from Preston Run, 0.5 mi upstream from Braddock Run, and 0.25 mi south of Clarysville.
PERIOD OF RECORD - July 2015 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,546.41 ft above
North American Vertical Datum of 1988.