@misc{indiciae48f337262a66,
  title = {Preliminary geologic map of the northwestern part of the Alamosa 30 X 60 minute quadrangle, Alamosa and Conejos Counties, Colorado},
  author = {Michael N. Machette and Ren A. Thompson},
  year = {2005},
  doi = {10.3133/ofr20051392},
  url = {https://pubs.usgs.gov/publication/ofr20051392},
  note = {Source identifier: ofr20051392}
}