About Contra Costa County Historical Society
The organization maintains an extensive collection of primary source materials including documents, maps, newspapers, and oral histories that are invaluable for researchers and genealogists.
The organization's collections and programs illuminate important aspects of California's heritage, including immigration waves, railroad history, Gold Rush. The 1849 Gold Rush transformed California from a remote territory into a diverse, rapidly growing state.
Members have access to research facilities, special programs, and opportunities to participate in preservation efforts throughout the area.
Plan Your Visit
Contra Costa County Historical Society is located in Martinez, US. For current hours, admission fees, and special programs, please visit their website or contact them directly.
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