In 1975 the City of Sonoma acquired the old Northwestern Pacific Railroad depot and adjacent land, The Sonoma Valley Historical Society developed the site as a museum. Exhibits include the history of the Bear Flag Revolt that claimed California for the United States, General Vallejo and his family, local Miwok, Pomo and Wappo Indian period, vignettes of pioneer times and there is also an extensive Railroad History of Sonoma Valley including several train cars and a display of the 40 Sonoma Valley Train Stops.

In January 1937 a small group formed the Sonoma Valley Historical Society to honor pioneer families and to collect, preserve and disseminate the historical heritage of the "Valley of the Moon". The Museum houses historical archives, written and photographs, and are available for Genealogists or families can find information about their ancestor's history, local businesses and properties, including those the wine industry

Time Period Represented: Native American and early Spanish from1820

Hours Open: 1- 4:30 pm

Visitor Fees: Free of charge

Seasons Open: All Year

Price Style for this Establishment: free