@misc{indiciaef24c3ee03af1,
  title = {Simplified preliminary geologic map of the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina},
  author = {Richard Goldsmith and D.J. Milton and J. Wright Horton},
  year = {1982},
  doi = {10.3133/ofr8256},
  url = {https://pubs.usgs.gov/publication/ofr8256},
  note = {Source identifier: ofr8256}
}