@misc{indiciae172b681ebfca,
  title = {Aeromagnetic map of the Deadwood area, Black Hills, South Dakota},
  author = {J. L. Meuschke and P. W. Philbin and F.A. Petrafeso},
  year = {1962},
  doi = {10.3133/gp304},
  url = {https://pubs.usgs.gov/publication/gp304},
  note = {Source identifier: gp304}
}