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Author
- Darton, Nelson Horatio, 1865-19488
- Geological Survey (U.S.)8
- Todd, J. E. (James Edward), 1846-19228
- South Dakota Geological Survey3
- Crandell, Dwight Raymond, 1923-2
- Cattermole, J. Mark (John Mark), 1908-1
- Darton, Nelson Horatio, 1865-1948, cartographer1
- King, Robert Ugstad, 1912-1
- Raymond, William H.1
- South Dakota Geological Survey, cartographer1
- Van Lieu, J. A.1
