@misc{indiciae313da4383d7a,
  title = {Water and the Minnesota Iron Range},
  author = {R. F. Brown and R. D. Cotter},
  year = {1963},
  doi = {10.3133/ofr6311},
  url = {https://pubs.usgs.gov/publication/ofr6311},
  note = {Source identifier: ofr6311}
}