@misc{indiciae899dc4e8103f,
  title = {Lithologic and geophysical logs of seven holes drilled in 1975 in the Yampa and Danforth Hills coal fields, northwestern Colorado},
  author = {Sean Conroy Muller},
  year = {1976},
  doi = {10.3133/ofr76383},
  url = {https://pubs.usgs.gov/publication/ofr76383},
  note = {Source identifier: ofr76383}
}