@misc{indiciaea7d6f543bdae,
  title = {A hiker's guide to the geology of Old Rag Mountain, Shenandoah National Park, Virginia},
  author = {Paul C. Hackley},
  year = {2000},
  doi = {10.3133/ofr00263},
  url = {https://pubs.usgs.gov/publication/ofr00263},
  note = {Source identifier: ofr00263}
}