description Bothin Marsh Overview
Bothin Marsh is a 106-acre tidal wetland and preserve on the Richardson Bay shoreline in southern Marin County, California. Marin County describes it as a remnant of the salt marshes that once surrounded San Francisco Bay, and reports that it supports more than 400 species of migratory birds, along with the endangered salt marsh harvest mouse and Ridgway's rail. The preserve is used for wildlife observation and shoreline recreation.
help Bothin Marsh FAQ
Where is Bothin Marsh located?
Bothin Marsh is a tidal wetland on the Richardson Bay shoreline in southern Marin County, California. It lies near Mill Valley and is part of the remaining marsh habitat around San Francisco Bay.
How large is Bothin Marsh?
The preserve covers 106 acres. Marin County describes it as a remnant of the larger salt-marsh system that once surrounded San Francisco Bay.
What wildlife can be found at Bothin Marsh?
The marsh supports more than 400 species, including wetland plants, shorebirds, fish, and other wildlife. Its tidal channels and marsh vegetation provide feeding and shelter habitat.
Why is Bothin Marsh important for conservation?
It protects a surviving piece of San Francisco Bay salt-marsh habitat in a heavily developed region. Tidal wetlands such as Bothin Marsh also help support biodiversity and buffer shorelines from coastal pressures.
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