@misc{indiciae2fe2375dc414,
  title = {One hundred topographic maps illustrating specified physiographic features},
  author = {U.S. Geological Survey},
  year = {1955},
  doi = {10.3133/70263906},
  url = {https://pubs.usgs.gov/publication/70263906},
  note = {Source identifier: 70263906}
}