References

About the Park (2016, May 2). Retrieved from https://www.nps.gov/maca/learn/index.htm

Currens, J. (2002). Kentucky is Karst Country! Kentucky Geological Survey, 4. Retrieved from kgs.uky.edu/kgsweb/olops.pub.

Davies, W., Morgan, I. (n.d.). Geology of Caves. Retrieved from https://pubs.usgs.gov/gip/7000072/report.pdf

Huff, L. (1940). Artificial Helictites and Gypsum Flowers. The Journal of Geology, 48(6), 641-659. Retrieved from http://www.jstor.org/stable/30058703

Livesay, A., McGrain, P. (1962). Geology of the Mammoth Cave National Park Area. Kentucky Geological Survey Special Publication, 7. Retrieved from http://kgs.uky.edu/kgsweb/olops/pub/kgs/xsp7reduce.pdf

May, M., Kuehn, K., Groves, C., Meimen, J. (2005). Karst Geomorphology and Environmental Concerns of the Mammoth Cave Region, Kentucky. Retrieved from https://www.uky.edu/KGS/geoky/fieldtrip/2005%20AIPG%20Guidebooks/MammothCave.pdf

Palmer, A. (1981). A Geological Guide to Mammoth Cave National Park. Teaneck, N.J. : Zephyrus Press.