Haley, B. R., E. E. Glick, B. F. Clardy, C. G. Stone, M. B. Woodward, & D. L. Zachry. 1993. Geologic Map of Arkansas, Map scale 1:500,000 (revised edition). Arkansas Geological Commission and US Geological Survey, Little Rock.
Paradise, T. 2010. Arkansas: An Illustrated Atlas. Butler Center Books, Butler Center for Arkansas Studies, Little Rock, 56 pp. (A wide variety of maps, some Earth science-related.)
Stroud, H. B., & G. T. Hanson. 1981. Arkansas Geography. Rose Publishing Company, Little Rock, 90 pp..
Varnell, C. 2011. Roads Less Traveled: A Journey through the Culture, Geography, and History of Arkansas. Black Jack Publishing, Atkins, AR, 164 pp. (Intended for teachers.)
Buchanan, R. 2010. Kansas Geology: An Introduction of Landscapes, Rocks, Minerals, and Fossils, 2nd Edition, Revised. University Press of Kansas, Lawrence, 228 pp.
Buchanan, R., & J. R. McCaulay. 2010. Roadside Kansas: A Traveler’s Guide to its Geology and Landmarks, (2nd Edition, Revised and Updated). University Press of Kansas, Lawrence, 376 pp.
Heinrich, P. V. 2001. Louisiana Geofacts. Louisiana Geological Survey, Public Information Series 6, 7 pp..
Spearing, D. 2007. Roadside Geology of Louisiana, 2nd edition. Mountain Press Publishing Company, Missoula, MT, 240 pp.
Missouri
Books and articles
Bretz, J. H. 1956. Caves of Missouri. State of Missouri, Department of Business and Administration, 490 pp.
Weaver, H. D. 2008. Missouri Caves in History and Legend. University of Missouri Press, Columbia, 176 pp.
Keller, W. D. 1961. The Common Rocks and Minerals of Missouri. University of Missouri Press, Columbia, 78 pp.
Unklesbay, A. G., & J. G. Vineyard. 1992. Missouri Geology: Three Billion Years of Volcanoes, Seas, Sediments, and Erosion. University of Missouri Press, Columbia, 189 pp.
Oklahoma
Books and articles
Johnson, K.S. 1998. Geology and mineral resources of Oklahoma. Oklahoma Geological Survey Information Series 2, 4 pp.