@misc{indiciaecfd1dd7a7963,
  title = {The National Map - Elevation},
  author = {Dean Gesch and Gayla Evans and James Mauck and John Hutchinson and William J. Carswell},
  year = {2009},
  doi = {10.3133/fs20093053},
  url = {https://pubs.usgs.gov/publication/fs20093053},
  note = {Source identifier: fs20093053}
}