LOCATION.--Lat 39°24'34.6", long 76°33'26.1", Baltimore County, MD, Hydrologic Unit 02060003, 
   on left bank, 1500 ft upstream from Sherwood Bridge in Cromwell Valley Park, 1.4 mi upstream 
   from mouth, 1.6 mi northwest of Carney, and 4.5 mi southwest of Glen Arm.
DRAINAGE AREA.--2.06 mi2.
PERIOD OF RECORD.--October 2001 to current year.
REVISIONS HISTORY.--https://waterdata.usgs.gov/nwis/dv/?site_no=0158397967: 2016.
   https://waterdata.usgs.gov/nwis/dv/?site_no=0158397967: 2015-2018.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 216.25 ft above North American 
   Vertical Datum of 1988. October 2010 to July 2022, datum published as 216.12 ft above North American 
   Vertical Datum of 1988. October 2001 to September 2010, datum published as 216.88 ft above National
   Geodetic Vertical Datum of 1929. Prior to August 14, 2015, gage located on 
   left bank, 190 ft downstream, at same gage datum.
REMARKS.--U.S. Geological Survey satellite data-collection platform at station. 
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,800 ft3/s, July 14, 2015, gage height, 9.15 ft;
   Maximum gage height, 10.41 ft, Aug. 13, 2018, at site currently in use; minimum discharge
   measurement, 0.04 ft3/s, August 21, 2002; instantaneous discharge may have been lower
   during periods of estimated record between August 1, and September 25, 2002.
COOPERATION.--Funding for the operation of this station is provided by the Baltimore County Department 
   of Environmental Protection and Sustainability, and the U.S. Geological Survey.