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Important for you to know:

  • New to WDFN: explore current and historic water data available in your area of interest and filter to find monitoring locations that collect the water data you need through Explore USGS Water Data. To learn more, read our announcement on the Water Data for the Nation blog.

Hydrological Unit: Trading Run-North Branch Potomac River

HUC Name
020700020801 Collier Run-North Branch Potomac River
020700020802 Mill Run
020700020803 Green Spring Run-North Branch Potomac River