@misc{indiciae6563adf5b334,
  title = {Supplementary cross sections and structure contour maps to the preliminary geologic map of the Figure Four Spring quadrangle, Rio Blanco and Garfield Counties, Colorado},
  author = {Ronald C. Johnson},
  year = {1978},
  doi = {10.3133/ofr78197},
  url = {https://pubs.usgs.gov/publication/ofr78197},
  note = {Source identifier: ofr78197}
}