@misc{indiciae7c31e7a58f06,
  title = {Preliminary Geologic Map of the Sanchez Reservoir Quadrangle and Eastern Part of the Garcia Quadrangle, Costilla County, Colorado},
  author = {Ren A. Thompson and Michael N. Machette and Benjamin J. Drenth},
  year = {2007},
  doi = {10.3133/ofr20071074},
  url = {https://pubs.usgs.gov/publication/ofr20071074},
  note = {Source identifier: ofr20071074}
}