Map of El Cajon Valley

1941

El Cajon Valley Chamber of Commerce.

1:31k

City of San Diego.- Reproduction by the San Diego History Center.

2013

Mora, Jo (1876-1947)

California Pacific International Exposition - San Diego.

1935

Bloodgood, Don

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

1901

International Boundary Commission

1:60k

San Diego, California.

1999

Unique Media Inc.

San Diego 1991.

1990

Phi, P. Bach

San Diego Area, California.

1972

Millsap, Darrel

Bird's eye view of San Diego and its Back Country. Text: The U.S. Grant Hotel.

1915

U.S. Grant Hotel

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