@misc{indiciaef0084d0149ba,
  title = {Aeromagnetic map of the Humbug Spires area, Montana},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1979},
  doi = {10.3133/ofr79752},
  url = {https://pubs.usgs.gov/publication/ofr79752},
  note = {Source identifier: ofr79752}
}