@misc{indiciae567972c21078,
  title = {Historic trail map of the Lamar 1° x 2° quadrangle, Colorado and Kansas},
  author = {G. R. Scott},
  year = {1995},
  doi = {10.3133/i2469},
  url = {https://pubs.usgs.gov/publication/i2469},
  note = {Source identifier: i2469}
}