@misc{indiciaeb3b7c7c640a5,
  title = {Ride the Rockies Postcard},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2008},
  doi = {10.3133/gip66},
  url = {https://pubs.usgs.gov/publication/gip66},
  note = {Source identifier: gip66}
}