Imperial Valley tract map

1914

Rock, Geo H.

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Metsker's map of Imperial County, California

1942

Chas. F. Metsker

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Topographic Map of Salton Sean and Vicinity Californiania

1925

US Geological Survey

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Reconnaissance map of the Salton Sink, California

1906

E.M. Douglas; R.B. Marshall; W. Carvel Hall

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California - Arizona

1905

U. S. Geological Survey

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Reconnaissance map of the Salton Sink, California

1908

E.M. Douglas

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A Hysterical map of Palm Springs thru the desert country to old Mehiko

1948

Lindgren Brothers

Reconnaissance map of the Salton Sick California

1906

Douglas, Edward Morehouse

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Topographic Map of Petroglyphs in Pinto Canyon

2017

Land Use Classification of Riverside County, California

1939

University of California Agricultural Extension Service.; United States. Department of Agriculture.; United States. Bureau of Agricultural Economics.

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