@misc{indiciae16ffc86a9668,
  title = {Iron ore in the Red Mountain formation in Greasy Cove, Alabama},
  author = {Ernest Francis Burchard},
  year = {1933},
  doi = {10.3133/cir1},
  url = {https://pubs.usgs.gov/publication/cir1},
  note = {Source identifier: cir1}
}