You are looking at a vital chart of the territory of the United States from the Mississippi River to the Pacific Ocean; ordered by Jeff' Davis, Secretary of War to accompany the reports of the explorations for a railroad route. Compiled from authorized explorations and other reliable data by G. K. Warren ... under the direction of W. H. Emory in 1854 and of A. A. Humphreys 1854-5-6-7-8. Drawn by E. Freyhold. Engr. on stone by J. Bien. It was made in 1858.
Map of the US west of the Mississippi River to Pacific Ocean indicating major rivers and towns, forts, trails, wagon roads, and routes of exploration. Shows states outlined in color. An important map of western expansion in period prior to Civil War,
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