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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 01645000 SENECA CREEK AT DAWSONVILLE, MD

Montgomery County, Maryland
Hydrologic Unit Code 020700080803
Latitude  39°07'41.1", Longitude  77°20'08.8" NAD83
Drainage area 101.0  square miles
Gage datum 213.31 feet above NAVD88

Period of record
Begin Date End Date Count
1930-08-18 2025-12-04 832

 
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