Territory of the United States from the Mississippi River to the Pacific Ocean : originally prepared to accompany the reports of the explorations for a Pacific railroad route / compiled from authorized explorations and other reliable data by G. K. WarrenFreyhold, Edward[1868]Includes list of "Authorities" and inset "Territory of Alaska" (scale 1:9,000,000).Relief shown by hachures and spot heights.Shows routes and dates of expeditions and surveys.cartographic