@misc{indiciae6b5a22b2c3f7,
  title = {Geoelectrical laboratory measurements of materials from the May Day Mine dump, southwestern Colorado},
  author = {David L. Campbell and Robert Horton and Shay Beanland},
  year = {2000},
  doi = {10.3133/ofr00382},
  url = {https://pubs.usgs.gov/publication/ofr00382},
  note = {Source identifier: ofr00382}
}