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
Relief shown by hachures and spot heights. Shows routes and dates of expeditions and surveys. Includes list of "Authorities" and inset "Territory of Alaska." Scale 1:3,000,000. Available also through the Library of Congress Web site as a raster image. Designed to show "milt. post underlined in red," LC copy not colored. Vault AACR2
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