Linea Divisoria Entre Mexico Y Los Estados Unidos. No. 17.

1901

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1:60k

1935 Blackburn’s map of San Diego County, California

1935

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1:250k

City of San Diego California Water Resources

1937

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[Cantu Palms.]

1946

Allen, Norton

Yuma County Municipal Airport : Yuma Arizona : Vicinity map

1951

United States. Air Force

1:500k

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

1962

California Division of Mines and Geology

1:250k

Linea Divisoria Entre Mexico Y Los Estados Unidos. No. 16.

1901

International Boundary Commission

1:60k

Greater San Diego.

1970

Moffett, Jack

Cuyamaca (San Diego County)

1902

1:125k

Salton Sink

1908

1:500k