@misc{indiciaecf33817f50d4,
  title = {Geologic and structure-contour map of the Raton 30' x 60' Quadrangle, Colfax and Union counties, New Mexico, and Las Animas County, Colorado},
  author = {G. R. Scott and C. L. Pillmore},
  year = {1993},
  doi = {10.3133/i2266},
  url = {https://pubs.usgs.gov/publication/i2266},
  note = {Source identifier: i2266}
}