@misc{indiciaeb78decfd4a7a,
  title = {A synthesis engine for constructing geologic maps of the United States},
  author = {Samuel Johnstone and Joseph P. Colgan and Warren P. Roe},
  year = {2025},
  doi = {10.3133/dr1210},
  url = {https://pubs.usgs.gov/publication/dr1210},
  note = {Source identifier: dr1210}
}