@misc{indiciae20f4eb45c21b,
  title = {Interpretation of the aeromagnetic pattern of the Uncompahgre primitive area, San Juan Mountains, Colorado},
  author = {Peter Popenoe and Robert G. Luedke},
  year = {1970},
  doi = {10.3133/ofr70266},
  url = {https://pubs.usgs.gov/publication/ofr70266},
  note = {Source identifier: ofr70266}
}