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United States (S.W. Central).

Map shows cities, towns, and geography of the southwest United States during the early twentieth century. Relief shown by hachures. Scale [ca. 1: 6,336,000] and [ca. 1:8,448,000].
Date: 1912?
Creator: W. and A. K. Johnston, Limited
System: The Portal to Texas History

Map of the Navajo Country ; Arizona, New Mexico, and Utah.

Map shows Native American reservation boundaries, pueblos, numbered wells, mining activity, roads, trails, buildings, county lines, township grid, water resources, national parks, monuments, and forests, and other notable features; routes of exploration before 1909. Relief shown by hachures and spot heights. Scale [ca. 1:500,000].
Date: 1916
Creator: Geological Survey (U.S.)
System: The Portal to Texas History

Geologic map of the Navajo country : Arizona, New Mexico, and Utah.

Map shows geological composition of Four Corners Region; boundaries of Indian reservations; national forests and monuments; water resources, mines, quarries, roads, trails, railroads, cities, towns, pueblos, and notable geological formations. Includes legend and key to map symbols. Relief shown by hachures. Scale [ca. 1:500,000].
Date: 1916
Creator: Geological Survey (U.S.)
System: The Portal to Texas History

U. S. Cavalry detachments and bases of army pilots on or near the U.S.-Mexico border, 1918-1919. Map

Photographic reproduction of a hand-drawn map that identifies towns where Cavalry units were stationed on the border from El Paso to Del Rio in 1918 and 1919. An inset shows locations of the three U. S. Military District headquarters (Rockwell Field, California; Fort Bliss, Texas; and Kelly Field, Texas) for the pilots patrolling the border from the Pacific to the Gulf of Mexico.
Date: 1918/1919
Creator: Smithers, W. D. (Wilfred Dudley), 1895-1981.
System: The Portal to Texas History