@misc{indiciae7d94ffee0434,
  title = {Reconnaissance geologic map of the Mount Douglas Quadrangle, Montana},
  author = {N.J. Page and F. S. Simons and J. C. Dohrenwend},
  year = {1973},
  doi = {10.3133/mf488},
  url = {https://pubs.usgs.gov/publication/mf488},
  note = {Source identifier: mf488}
}