@misc{indiciae6f4f4276248a,
  title = {Lancaster-Mineral Point folio, Wisconsin-Iowa-Illinois},
  author = {Ulysses Sherman Grant and Ernest Francis Burchard},
  year = {1907},
  doi = {10.3133/gf145},
  url = {https://pubs.usgs.gov/publication/gf145},
  note = {Source identifier: gf145}
}