@misc{indiciaec701a913f0a7,
  title = {Analog Records from an Airborne Electromagnetic Survey (Using the Dighem II System) of Parts of the Lake City Caldera, Hinsdale County, Colorado},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1981},
  doi = {10.3133/ofr811311},
  url = {https://pubs.usgs.gov/publication/ofr811311},
  note = {Source identifier: ofr811311}
}