The Geological Survey en route
1871
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This primary source comes from the Records of the U.S. Geological Survey.
National Archives Identifier: 516722
Full Citation: The Geological Survey en route; 1871; Records of the U.S. Geological Survey, Record Group 57. [Online Version, https://www.docsteach.org/documents/document/the-geological-survey-en-route, September 25, 2023]Rights: Public Domain, Free of Known Copyright Restrictions. Learn more on our privacy and legal page.