Skip to main content

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: Mill River-Frontal Long Island Sound

HUC Name
011000040301 Mill River
011000040302 West River
011000040303 Milford Harbor-Frontal Long Island Sound
011000040304 Cove River-Frontal Long Island Sound