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From Fort Smith to the Rio Grande : from explorations and surveys /
Scale 1:950,400. Relief shown by hachures. At head of title: Route near the 35th Parallel. Map no. 1. From U.S. War Department, Explorations and Surveys for a Railroad Route from the Mississippi River to the Pa... More
From the Rio Grande to the Pacific Ocean : from explorations and surve...
Scale 1:950,400. At head of title: Route near the 35th Parallel. Map no. 2. Relief shown by hachures. From U.S. War Department, Explorations and Surveys for a Railroad route from the Mississippi River to the Pa... More