@misc{indiciaedc02f5c53e32,
  title = {1998 Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States},
  author = {The U.S. Geological Survey National Mineral Resource Assessment Team},
  year = {2000},
  doi = {10.3133/cir1178},
  url = {https://pubs.usgs.gov/publication/cir1178},
  note = {Source identifier: cir1178}
}