@misc{indiciae58e52fb46840,
  title = {Preliminary Geologic Map of the Culebra Peak Area, Sangre de Cristo Mountains, Las Animas and Costilla Counties, Colorado},
  author = {Christopher J. Fridrich and Robert M. Kirkham},
  year = {2008},
  doi = {10.3133/ofr20071428},
  url = {https://pubs.usgs.gov/publication/ofr20071428},
  note = {Source identifier: ofr20071428}
}