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Author
- National Atlas of the United States46
- Geological Survey (U.S.)24
- Arndt, Raymond E.10
- Bawiec, Walter J.10
- Beikman, Helen M.10
- King, Philip B.10
- National Geophysical Data Center10
- Schruben, Paul G.10
- Geological Survey (U.S.) Minerals Information Team9
- Godt, Jonathan W.3
- U.S. Geological Survey2
- Blackburn, Laura1
- Canada Centre for Mapping1
- Eastern Energy Resource Surveys Team (Geological Survey)1
- Geological Survey (U.S.). Water Resources Division. Wisconsin District1
- Instituto Nacional de Estadística, Geografía e Informática (Mexico)1
- Lannoo, Michael J.1
- Nanjappa, Priya1
- Patuxent Wildlife Research Center1
- Rawson, Peg1