1935 Blackburn’s map of San Diego County, California

1935

Blackburn, O.V.

1:250k

City of San Diego California Water Resources

1937

San Diego (Calif.). Water Department (1901-1963)

1:580k

Reconnaissance map of the Salton Sink, California

1908

E.M. Douglas

1:500k

Reconnaissance map of the Salton Sink, California

1906

E.M. Douglas; R.B. Marshall; W. Carvel Hall

1:500k

Ride The Roads To Romance along the Golden Coast and thru the Sunshine Empire of Southern California

1953

Woodward, Arthur

A Hysterical map of Palm Springs thru the desert country to old Mehiko

1948

Lindgren Brothers

Map No. 2 of the El Paso & Fort Yuma Wagon Road.

1858

Campbell, Albert

1:6m

Map Number 2 of the El Paso and Fort Yuma Wagon Road

1858

Department of the Interior

1:600k

Ride The Roads To Romance along the Golden Coast.

1952

Roads To Romance Assn, Inc.

Topographic Map of Petroglyphs in Pinto Canyon

2017