@misc{indiciaefbe3e2a4b85e,
  title = {Experimental digital shaded-relief maps of Wyoming},
  author = {Kathleen Edwards and R. M. Batson},
  year = {1990},
  doi = {10.3133/i1846},
  url = {https://pubs.usgs.gov/publication/i1846},
  note = {Source identifier: i1846}
}