@misc{indiciae31dd3ca70e4b,
  title = {Preliminary map showing surficial deposits in the west half of the Crater Lake Quadrangle, Lake and Flathead counties, Montana},
  author = {Irving Jerome Witkind},
  year = {1978},
  doi = {10.3133/ofr78173},
  url = {https://pubs.usgs.gov/publication/ofr78173},
  note = {Source identifier: ofr78173}
}