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

Sheet No. 3, Department of Arizona

1876

Ward, J.W.

1:665k

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

1858

Campbell, Albert

1:6m

Southern California Highway Map.

1938

Thomas Brothers

1:1m

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.

Arizona.

1938

Hague

Territory of Arizona, 1905

1905

U.S. General Land Office

Territory of Arizona, 1908

1908

U.S. General Land Office