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

1901

International Boundary Commission

1:60k

California.

1898

Reynolds & Proctor

1:3m

San Ysidro (San Diego County)

1941

1:32k

National City, San Diego Co.

1887

W.W. Elliott & Co.

1935 Blackburn’s map of San Diego County, California

1935

Blackburn, O.V.

1:250k

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

1956

Shell Oil Company

Cuyamaca (San Diego County)

1902

1:125k

City of San Diego California Water Resources

1937

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

1:580k

San Diego Area, California.

1972

Millsap, Darrel

(Verso) State Highway Map, 1977.

1977

California Department of Transportation (CALTRANS)