@misc{indiciaec96969feade5,
  title = {Geologic map of the Hazard 30- x 60-minute Quadrangle, Eastern Kentucky},
  author = {C. L. Rice},
  year = {1985},
  doi = {10.3133/i1727a},
  url = {https://pubs.usgs.gov/publication/i1727A},
  note = {Source identifier: i1727A}
}