@misc{indiciae7ba5ffa4f5fb,
  title = {Geochemical survey of the Rich Hole Roadless Area, Alleghany and Rockbridge counties, Virginia},
  author = {F. G. Lesure},
  year = {1986},
  doi = {10.3133/mf1760b},
  url = {https://pubs.usgs.gov/publication/mf1760B},
  note = {Source identifier: mf1760B}
}