@misc{indiciae524461cc1a62,
  title = {Geologic map of the north central part of the Olympic Peninsula, Washington},
  author = {Robert D. Brown},
  year = {1970},
  doi = {10.3133/ofr7043},
  url = {https://pubs.usgs.gov/publication/ofr7043},
  note = {Source identifier: ofr7043}
}