@misc{indiciae44186ab974f5,
  title = {Water-level records for the San Luis Valley of Colorado, 1973-77},
  author = {Robert D. Penley},
  year = {1977},
  doi = {10.3133/ofr77265},
  url = {https://pubs.usgs.gov/publication/ofr77265},
  note = {Source identifier: ofr77265}
}