@misc{indiciae9cbdc0ed682a,
  title = {GEONAMES data base of geologic names of the United States through 1988 : TX, LA, AR},
  author = {G. W. Luttrell and M.L. Hubert and C.R. Murdock},
  year = {1990},
  doi = {10.3133/ofr90466i},
  url = {https://pubs.usgs.gov/publication/ofr90466I},
  note = {Source identifier: ofr90466I}
}