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- Boundary Solutions, Inc.127
- National Atlas of the United States47
- U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch28
- Geological Survey (U.S.)24
- Cao, Changyong19
- Earle, Carville19
- Heppen, John19
- Louisiana State University (Baton Rouge, La.). Department of Geography and Anthropology.19
- Otterstrom, Samuel19
- 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
- Platts9
- Geographic Data Technology, Inc. (GDT)5
- ESRI3
- Godt, Jonathan W.3