@misc{indiciae045f0deafd59,
  title = {Geologic map of the Varney quadrangle, Madison County, Montana},
  author = {Jarvis B. Hadley},
  year = {1969},
  doi = {10.3133/gq814},
  url = {https://pubs.usgs.gov/publication/gq814},
  note = {Source identifier: gq814}
}