Clayton is a city in Contra Costa County, California, United States. Clayton is located at the foot of Mt. Diablo State Park. - https://en.wikipedia.org/wiki/Clayton,_California
Type: City
Contact
Dana Ayers Temporary Use Permits, City of Clayton 6000 Heritage Trail, Clayton, CA 94517 (925) 673-7343 phone 1 (925) 672-4917 fax [email protected] http://www.ci.clayton.ca.us