@misc{indiciaec29217862963,
  title = {Geologic map and engineering data for the Highlands Ranch Quadrangle, Arapahoe and Douglas counties, Colorado},
  author = {John O. Maberry and Robert M. Lindvall},
  year = {1974},
  doi = {10.3133/mf631},
  url = {https://pubs.usgs.gov/publication/mf631},
  note = {Source identifier: mf631}
}