@misc{indiciae7cfaf1f5b667,
  title = {Geologic map of the Mud Springs quadrangle, Carbon and Natrona Counties, Wyoming},
  author = {E.N. Harshman},
  year = {1964},
  doi = {10.3133/ofr6470},
  url = {https://pubs.usgs.gov/publication/ofr6470},
  note = {Source identifier: ofr6470}
}