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Alkali map, Colorado, San Luis Valley
Map shows San Luis Valley railroads, agricultural canals, roads, township grid, and existing towns in Colorado during the early twentieth century. Includes legend. Relief shown by hachures. Scale [1:126,720].
Date:
1903
Creator:
Holmes, J. Garnett
System:
The Portal to Texas History
Soil map, Colorado, San Luis Valley
Map shows San Luis Valley soil composition, township grid, agricultural canals, railroads in California during the early twentieth century. Includes soil profile and legend. Relief shown by hachures. Scale [1:126,720].
Date:
1903
Creator:
Holmes, J. Garnett
System:
The Portal to Texas History