Flood Risk Information, Watersheds, and Water Resources in Marin County


The Marin Watershed Program has information on local conditions, meetings & events related to watersheds, and local projects. You can also find resources, learn about watershed science, and learn how you can be involved.

Sea level rise diagram

Sea Level Rise

Learn about potential impacts

Winter is here

Visit our Flood Preparedness page

Current Projects

See what's going on around Marin County

Find Your Watershed

Don't know your watershed? Click Here to use the interactive map.

Interactive Map Static

Watershed Explorer

Discover Information on watershed history, present land use, biology, and watershed processes.