@misc{indiciaed4d241a2f91d,
  title = {Surficial geologic map of the Iron River 1 degree by 2 degrees Quadrangle, Michigan and Wisconsin},
  author = {W. L. Peterson},
  year = {1984},
  doi = {10.3133/i1360c},
  url = {https://pubs.usgs.gov/publication/i1360C},
  note = {Source identifier: i1360C}
}