LOCATION.--Lat 39°05'55.1", long 77°28'16.5", 
   Montgomery County, MD, Hydrologic Unit 02070008, on left bank in the wooded flood plain 
   adjacent to the C&O Canal path, approximately 1000 ft downstream of Goose Creek. 
DRAINAGE AREA.--11,130 mi2.
PERIOD OF RECORD.--August 2011 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 178.70 ft above North 
   American Vertical Datum of 1988. 
REMARKS.--This is a stage-only station. Discharge is not determined at this location. U.S. 
   Geological Survey satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 22.45 ft, June 4, 2018; minimum
   elevation, 2.65 ft, Aug. 9, 2021.
COOPERATION.--Funding for the operation of this station is provided by the Interstate
   Commission on the Potomac River Basin (ICPRB), and the U.S. Geological Survey.