@misc{indiciae6395150e3749,
  title = {A Compilation of Provisional Karst Geospatial Data for the Interior Low Plateaus Physiographic Region, Central United States},
  author = {Charles J. Taylor and Hugh L. Nelson},
  year = {2008},
  doi = {10.3133/ds339},
  url = {https://pubs.usgs.gov/publication/ds339},
  note = {Source identifier: ds339}
}