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A watershed is all of the land that drains to a particular: Stream River, or Bay From the wildest preserve to the most densely developed urban neighborhood, all land is part of a watershed. When watersheds are healthy and functioning well, they provide food, fiber, clean water, and habitat for native plants and animals. Healthy...

Over 150 species of birds live and breed in Marin County’s coastal bay lands. Many of them are rare and threatened species. These birds rely on three main watershed features: Mature riparian trees and snags for roosting and nesting Fish, amphibians and other small animals for food Natural tidal flows to maintain rich coastal marsh...

Reptiles and amphibians are found throughout the County. They are dependent on the condition of creeks and riparian habitat during a part or all their life stages, and they may use upland terrestrial habitats during part of the life-cycles. Amphibians Amphibian species need diverse, healthy riparian vegetation and reliable sources of clean water to survive....

No creatures are more symbolic of healthy watersheds than native fish. In our region, the health of coho salmon and steelhead indicate the health of a watershed. In west Marin, Chinook salmon are also observed consistently in the Lagunitas Creek system. These salmonids are anadromous fish. Anadromous fish: Are born and rear in freshwater streams...

Marin County has a diverse mosaic of plant communities, including: Forested Mt. Tamalpais Chaparral Grassy slopes Ocean and bay marshes Beaches Native grasslands Marin once supported native grasslands of perennial bunchgrasses and annual wildflowers. Today, these areas are now dominated by Mediterranean annual grass species or are used for residential and commercial development. Nonetheless, native...

Marin watersheds provide habitat, food, and shelter for many species of invertebrates, reptiles, amphibians, mammals and birds. Wildlife communities in the watershed are an important part of the ecosystem and its health. Learn about some of the common, endangered, and unique animals living in our watershed.

Goal The goal of the Fish Passage Program is to construct 10-15 high priority projects. Since 2005,  14 fish passage projects have been designed countywide: 12 in the San Geronimo Creek watershed 1 in the Redwood Creek watershed 1 in the Novato Creek watershed Of the 14 projects, 12 have been completed. Two projects in...

Documents listed below are from 2018 onward. If you need a document from prior to 2018, please use the contact form to submit your request.

Documents listed below are from 2018 onward. If you need a document from prior to 2018, please use the contact form to submit your request.

Documents listed below are from 2018 onward. If you need a document from prior to 2018, please use the contact form to submit your request.