@misc{indiciaea6f124ea338c,
  title = {Geologic map of the Barcreek quadrangle, Clay County, Kentucky},
  author = {Alfred R. Taylor},
  year = {1978},
  doi = {10.3133/gq1485},
  url = {https://pubs.usgs.gov/publication/gq1485},
  note = {Source identifier: gq1485}
}