@misc{indiciae6ce7c2b46e6e,
  title = {Rectified images of selected geologic maps in the Northern Rockies Area, Idaho, Montana, Washington, and Wyoming},
  author = {Jeremy C. Larsen and Kenneth C. Assmus and J. Douglas Causey and Michael L. Zientek},
  year = {2004},
  doi = {10.3133/ds106},
  url = {https://pubs.usgs.gov/publication/ds106},
  note = {Source identifier: ds106}
}