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| | Geologic Mapping Studies at Buffalo National River, Northern Arkansas |
 | | Murray, K.E., and Hudson, M.R., 2002, Three-dimensional geologic framework modeling for a karst region in the Buffalo National River, Arkansas: in Kuniansky, E.L., ed., U.S. Geological Survey Karst Interest Group Proceedings, Water-Resources Investigations Report 02-4174, p. |
 | | Detailed geologic mapping is being conducted by the U.S. Geological Survey in and adjacent to the Buffalo National River (figs. |
 | | Hudson, M.R., and Murray, K.E., 2003, Geologic map of the Ponca Quadrangle, Newton, Boone, and Carroll Counties, Arkansas: U.S. Geological Survey Miscellaneous Field Studies Map MF-2412, 1:24,000 scale. |
| esp.cr.usgs.gov /research/buffaloriver |
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