About the Sonoma Creek Watershed

Sonoma Creek watershed is a 166-square-mile valley 45 miles north of San Francisco.

We all live in a watershed; in Sonoma Valley, all creeks drain to the marshes and tide lands fringing San Pablo Bay. Thus, the Sonoma Valley is part of the Sonoma Creek watershed.

With its beautiful, largely rural watershed, Sonoma Valley boasts some of the finest parks, forests, grasslands, and vineyards in the San Francisco Bay Area. Upland areas are drained by Sonoma Creek—which, along with its tributaries, is home to a run of endangered steelhead trout, as well as Chinook salmon and California freshwater shrimp.

To learn more about our watershed, see these valuable Sonoma Ecology Center resources:

What is a Watershed? – Downloadable educational handout (pdf, front and back) explaining the meaning and importance of a watershed, with details about our own Sonoma Creek Watershed. We use it when we teach throughout Sonoma Valley schools!

Sonoma Valley Knowledge Base – for a wealth of information about Sonoma Valley, including reports, maps, posters, and books.

Sonoma Ecology Center Event Calendar – for upcoming hikes, outings, and volunteer opportunities to understand, appreciate and sustain our watershed.

Sonoma Creek Watershed