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Important for you to know:

  • New to WDFN: customize and keep track of your list of favorite monitoring locations and data types using the new My Favorites page. To learn more, read our announcement on our Water Data for the Nation blog.

Hydrological Unit: Patapsco River

HUC Name
020600031101 Brice Run-Patapsco River
020600031102 Deep Run-Patapsco River
020600031103 Herbert Run-Patapsco River