@misc{indiciae01b72dd5ab64,
  title = {Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Kassler Quadrangle, Jefferson and Douglas counties, Colorado},
  author = {P. W. Schmidt},
  year = {1978},
  doi = {10.3133/mf787},
  url = {https://pubs.usgs.gov/publication/mf787},
  note = {Source identifier: mf787}
}