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LOCATION.--Lat 39°17'38.9", long 77°24'25.5", Frederick County, Hydrologic Unit 02070009, on left bank, 75 ft downstream from highway bridge, 0.2 mi south of Park Mills, 1.8 mi upstream from mouth, and 3.7 mi southwest of Urbana. DRAINAGE AREA.--62.8 mi2. PERIOD OF RECORD.--July 1948 to September 1958. Annual maximum, water years 1960-66. August 1966 to current year. GAGE.--Water-stage recorder, crest-stage gage and concrete control. Datum of gage is 232.62 ft above North American Vertical Datum of 1988. REMARKS.--U.S. Geological Survey satellite data-collection platform at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 32,200 ft³/s, June 21, 1972, gage height, 22.10 ft; minimum discharge, 0.30 ft³/s, Sept. 8, 1966. COOPERATION.--Funding for the operation of this station is provided by the Maryland Geological Survey, and the U. S. Geological Survey.
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