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Very detailed map of the United States west of the Mississippi River indicating drainage, relief by hachures, cities and towns, forts, trails, wagon roads, and routes of exploration. An important m...
Very detailed map of the United States west of the Mississippi River indicating drainage, relief by hachures, cities and towns, forts, trails, wagon roads, and routes of exploration. An important map of western expansion, it utilized and lists 45 major exploration and mapping reports from the Lewis & Clark to the U.S. General Land Office Surveys.