Report Of The United States Geological Survey To The Secretary Of The Interior, Volume 20, Part 6 (Paperback)

This is Volume 20, Part 6 of the "Report of the United States Geological Survey to the Secretary of the Interior." This historical document offers a detailed look into the geological surveys conducted by the U.S. government. It provides valuable insights into the earth sciences, natural resources, and the geological landscape of the United States. A crucial resource for researchers, historians, and anyone interested in the history of geological exploration and the development of our understanding of the American landscape.

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