California Historical Landmarks in San Joaquin County
California Historical Landmark 162
Mokelumne City Site
Cameron Road and Thornton Road
Established in 1850, its prospects were bright. The second largest town in the county, it had deep water communication with San Francisco all year round, an advantage not possessed by any other town in the county except Stockton. The floods of 1862 destroyed the town.
Citation from California Office of Historic Preservation