@misc{indiciae68a5cc8ccc8b,
  title = {General geology of the Hahns Peak and Farwell Mountain quadrangles, Routt County, Colorado},
  author = {Kenneth K. Segerstrom and Edward J. Young and G. N. Pipiringos},
  year = {1972},
  doi = {10.3133/b1349},
  url = {https://pubs.usgs.gov/publication/b1349},
  note = {Source identifier: b1349}
}