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West County Museum

261 S Main St, Sebastopol, CA 95472

This museum focuses on the history of western Sonoma County. It's housed in a former Petaluma and Santa Rosa Electric Railway Depot originally built in 1917. The museum is operated by the Western Sonoma County Historical Society. Exhibits change two or three times per year. The Triggs Reference Room provides access to historical reference books and a clippings file.