@misc{indiciae0642f8508869,
  title = {Map of deposits especially susceptible to compaction or subsidence, Parker quadrangle, Arapahoe and Douglas Counties, Colorado},
  author = {J. O. Maberry},
  year = {1972},
  doi = {10.3133/i770j},
  url = {https://pubs.usgs.gov/publication/i770J},
  note = {Source identifier: i770J}
}