@misc{indiciae2b0f9c6bfa84,
  title = {Map of pioneer trails, stage stops, and areas with a view in the Parker quadrangle, Arapahoe and Douglas Counties, Colorado},
  author = {J. O. Maberry},
  year = {1973},
  doi = {10.3133/i770m},
  url = {https://pubs.usgs.gov/publication/i770M},
  note = {Source identifier: i770M}
}