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:
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Map
Partner:
University of Texas at Arlington Library