@misc{indiciae12a68de7a066,
  title = {Geophysical studies of the Cripple Creek mining district, Colorado},
  author = {M. Dean Kleinkopf and Donald L. Peterson and Garland B. Gott},
  year = {1970},
  doi = {10.1190/1.1440110},
  url = {https://pubs.usgs.gov/publication/70226541},
  note = {Source identifier: 70226541}
}