Contour Map of the United States
ca. 1885
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This primary source comes from the Records of the Office of the Chief of Engineers.
National Archives Identifier: 122668686
Full Citation: Contour Map of the United States; ca. 1885; United States; Civil Works Map File, 1818 - 1947; Records of the Office of the Chief of Engineers, Record Group 77; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/contour-map-of-the-united-states, April 20, 2024]Rights: Public Domain, Free of Known Copyright Restrictions. Learn more on our privacy and legal page.