@misc{indiciae2ae2a63b2954,
  title = {Topographic and geologic map of the Kokomo-Robinson area, Summit County, Colorado},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1942},
  doi = {10.3133/ofr4216},
  url = {https://pubs.usgs.gov/publication/ofr4216},
  note = {Source identifier: ofr4216}
}