Official map of the city of El Centro : Imperial County, California

1921

Philip W. Knights; W.T. Rhodes

1:12k

Imperial Valley tract map

1914

Rock, Geo H.

1:125k

Metsker's map of Imperial County, California

1942

Chas. F. Metsker

1:127k

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

1948

Lindgren Brothers

Reconnaissance map of the Salton Sink, California

1906

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

1:500k

Reconnaissance map of the Salton Sink, California

1908

E.M. Douglas

1:500k

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

1953

Woodward, Arthur

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

Historic Road to Romance : California's Southern Empire tourist paradise

1946

Brown Karl F.