@misc{indiciae9c03f055ef4a,
  title = {Geologic map of the Cedar Mesa-Boundary Butte area, San Juan County, Utah},
  author = {Robert Brett O'Sullivan},
  year = {1961},
  doi = {10.3133/ofr61115},
  url = {https://pubs.usgs.gov/publication/ofr61115},
  note = {Source identifier: ofr61115}
}