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Author
- Geological Survey (U.S.)71
- United States. Bureau of Land Management12
- Peterson, E. Frank11
- Rand McNally and Company9
- Darton, Nelson Horatio, 1865-19488
- Todd, J. E. (James Edward), 1846-19228
- United States. Forest Service5
- Rand McNally and Company, cartographer4
- South Dakota Geological Survey4
- Agnew, Allen F., 1918-20123
- J.H. Colton & Co.3
- Peterson, E. Frank, cartographer3
- Petsch, Bruno C. (Bruno Carl), 1901-19813
- Brown, Thos. H.2
- Crandell, Dwight Raymond, 1923-2
- Malven, C. F., cartographer2
- Peterson, E. Frank, creator2
- United States. Bureau of Land Management, cartographer2
- Bates, Charles A. (Charles Ash)1
- Bruce, W. L.1