@misc{indiciae50e9f09d6d7c,
  title = {Stratigraphic sections of the upper Mancos Shale-lower Mesaverde Formation interval along the Grand Hogback between Rifle Gap and North Thompson Creek, Garfield and Pitkin counties, Colorado},
  author = {James R. Gill and Val L. Freeman},
  year = {1978},
  doi = {10.3133/ofr78178},
  url = {https://pubs.usgs.gov/publication/ofr78178},
  note = {Source identifier: ofr78178}
}