@misc{indiciaee3a223536fd0,
  title = {Geology of the Duck Creek Pass quadrangle, Montana},
  author = {Willis H. Nelson},
  year = {1963},
  doi = {10.3133/b1121j},
  url = {https://pubs.usgs.gov/publication/b1121J},
  note = {Source identifier: b1121J}
}