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Clayton Historical Society and Museum

Clayton, California
News & Events
Membership & Volunteer


Welcome to the Clayton Historical Society and Museum's website!

The Clayton Historical Society was founded in 1974 to "research, collect, record, preserve, display, borrow, share, and interpret local history information and memorabilia, and to promote understanding of Clayton origins and development."

 Upcoming Events



4oth Annual
Camellia Tea

Sunday, Feb 12th, 2017

1-4PM | Museum


More info



Check out what we sell at the Museum's Gift Shop online.  All items can be purchased online and picked up at the Museum.  Makes great, unique gifts!
 Current Exhibit
Bay Point and Clayton Railroad Co and Cowell Portland Cement Co Railroads --
Rolling Through the Clayton Valley -
110 Years after Incorporation
Learn about this little-known 9-mile private short line railroad, incorporated on August 29, 1906, owned and operated by the Cowell Portland Cement Company (producers of ‘Mt Diablo Cement’), which ran from the cement plant & company town of Cowell (at the base of the Lime Ridge hills), crossing familiar roads, and alongside Mt Diablo Creek; rolling through bucolic scenery, a dairy farm, orchards and ranches of the greater Clayton Valley (much of today’s Concord Naval Weapons Station / future EBRPD  parkland), to Bay Point (today’s Port Chicago / Military Ocean Terminal Concord - MOTCO), terminating at the Santa Fe Railway interchange.
This exhibit will run through January 29th, 2017, and is open to the public at no cost, but donations are welcome.  Please visit the Clayton Museum page for viewing days and hours.

About the Museum



Clayton Historical Society

and Museum

6101 Main Street

P.O. Box 94

Clayton, CA 94517-1201
(925) 672-0240

Wednesdays and Sundays
2:00 - 4:00 p.m.