@misc{indiciae2905c43026b6,
  title = {Geology and coal resources of Castle Valley in Carbon, Emery, and Sevier Counties, Utah},
  author = {Charles Thomas Lupton},
  year = {1916},
  doi = {10.3133/b628},
  url = {https://pubs.usgs.gov/publication/b628},
  note = {Source identifier: b628}
}