@misc{indiciaed74860654a4f,
  title = {Maps showing landforms of the Umqua South area, the Oregon Dunes National Recreation Area, Oregon},
  author = {T. R. Alpha and R. E. Hunter and B. M. Richmond},
  year = {1980},
  doi = {10.3133/mf1205},
  url = {https://pubs.usgs.gov/publication/mf1205},
  note = {Source identifier: mf1205}
}