@misc{indiciaeda0059071c0c,
  title = {Preliminary map of the Precambrian geology of the Iron Mountain quadrangle, Dickinson County, Michigan, and Marinette County, Wisconsin},
  author = {Richard W. Bayley},
  year = {1957},
  doi = {10.3133/ofr578},
  url = {https://pubs.usgs.gov/publication/ofr578},
  note = {Source identifier: ofr578}
}