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Alkali map, California, Indio sheet.

Description: Map shows early twentieth century Riverside County, California towns, roads, railroads, township grid, soil types, and the "Salton Sink." Includes legend to alkali soil content. Relief shown by hachures. Scale [1:63,360].
Date: 1903
Creator: United States Bureau of Soils.
Item Type: Map
Partner: University of Texas at Arlington Library

Soil map, California, Imperial sheet (second survey)

Description: Map shows early twentieth century Imperial County, California towns, canals, township grid, railroads, soil types, and the "Salton Sink." Includes legends and soil profile. Scale [1:126,720].
Date: 1903
Creator: United States Bureau of Soils.
Item Type: Map
Partner: University of Texas at Arlington Library

Soil map, California, Indio sheet

Description: Map shows early twentieth century Riverside County, California towns, township grid, roads, railroads, soil types, and the "Salton Sink." Includes legends and soil profile. Relief shown by hachures. Scale [1:63,360].
Date: 1903
Creator: United States Bureau of Soils.
Item Type: Map
Partner: University of Texas at Arlington Library

Alkali map, California, Imperial sheet (second survey).

Description: Map shows early twentieth century Imperial County, California towns, township grid, railroads, "Salton Sink," and alkaline content of soil. Includes legend. Relief shown by hachures. Scale [1:126,720].
Date: 1903
Creator: United States Bureau of Soils.
Item Type: Map
Partner: University of Texas at Arlington Library