Map of El Cajon Valley

1941

El Cajon Valley Chamber of Commerce.

1:31k

San Diego, California.

1999

Unique Media Inc.

San Diego Area, California.

1972

Millsap, Darrel

Geologic Map of California, San Diego - El Centro Sheet.

1962

California Division of Mines and Geology

1:250k

Street Map of San Diego (Eastern Section). Downtown San Diego. Metropolitan San Diego and Vicinity.

1956

Shell Oil Company

Linea Divisoria Entre Mexico Y Los Estados Unidos. No. 18.

1901

International Boundary Commission

1:60k

[Recto], uit: [Orange-San Diego area] / R.U. Goode, geographer in charge ; comp. by A.F. Hassan

1904

Goode, R. U.; Hassan, A. F.

1:250k

San Diego County.

1935

California Division of Highways

1:189k

City of San Diego California Water Resources

1937

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

1:580k

1935 Blackburn’s map of San Diego County, California

1935

Blackburn, O.V.

1:250k