@misc{indiciaec0a7b5c01ab6,
  title = {Geologic map of the Norris quadrangle, Madison County, Montana},
  author = {Karl S. Kellogg},
  year = {1994},
  doi = {10.3133/gq1738},
  url = {https://pubs.usgs.gov/publication/gq1738},
  note = {Source identifier: gq1738}
}