@misc{indiciae49f0e168cdb3,
  title = {Preliminary geologic map of the Mountain Falls quadrangle, Frederick and Shenandoah Counties, Virginia, and Hampshire County, West Virginia},
  author = {R. C. McDowell},
  year = {1995},
  doi = {10.3133/ofr95620},
  url = {https://pubs.usgs.gov/publication/ofr95620},
  note = {Source identifier: ofr95620}
}