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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: Western Branch Patuxent River

HUC Name
020600060301 Southwest Branch Western Branch Patuxent River
020600060302 Northwest Branch Western Branch Patuxent River
020600060303 Collington Branch
020600060304 Charles Branch-Western Branch Patuxent River