@misc{indiciaed9d15eb6ba73,
  title = {Generalized potentiometric surface of the Arikaree aquifer, Pine Ridge Indian Reservation and Bennett County, South Dakota},
  author = {Janet M. Carter and Allen J. Heakin},
  year = {2007},
  doi = {10.3133/sim2993},
  url = {https://pubs.usgs.gov/publication/sim2993},
  note = {Source identifier: sim2993}
}