@misc{indiciaee71d820bbf07,
  title = {Mineral resources of the Rich Hole Roadless Area, Alleghany and Rockbridge counties, Virginia},
  author = {Frank Gardner Lesure},
  year = {1987},
  doi = {10.3133/b1667},
  url = {https://pubs.usgs.gov/publication/b1667},
  note = {Source identifier: b1667}
}