@misc{indiciae707b17381a91,
  title = {Geology of the Cane Branch and Helton Branch watershed areas, McCreary County, Kentucky},
  author = {Erwin J. Lyons},
  year = {1957},
  doi = {10.3133/ofr5766},
  url = {https://pubs.usgs.gov/publication/ofr5766},
  note = {Source identifier: ofr5766}
}