@misc{indiciaea40fc549b0da,
  title = {Drainage areas in the Big Sioux River basin in eastern South Dakota},
  author = {Frank D. Amundson and Neil C. Koch},
  year = {1985},
  doi = {10.3133/ofr85348},
  url = {https://pubs.usgs.gov/publication/ofr85348},
  note = {Source identifier: ofr85348}
}