@misc{indiciaef2c027f4306c,
  title = {Reconnaissance map showing landslides in Washington County, Pennsylvania},
  author = {John S. Pomeroy},
  year = {1977},
  doi = {10.3133/ofr77307},
  url = {https://pubs.usgs.gov/publication/ofr77307},
  note = {Source identifier: ofr77307}
}