@misc{indiciaefc064835b1eb,
  title = {Geochemical map showing distribution of stream-sediment samples that contain anomalous concentrations of antimony, bismuth, cadmium, copper, lead, silver, and zinc in the Wallace 1° x 2° quadrangle, Montana and Idaho},
  author = {D. L. Leach and D.M. Hopkins},
  year = {1986},
  doi = {10.3133/i1509c},
  url = {https://pubs.usgs.gov/publication/i1509C},
  note = {Source identifier: i1509C}
}