@misc{indiciaea0a305bd9177,
  title = {Geologic map of the Marenisco and Wakefield NE quadrangles, Gogebic County, Michigan},
  author = {V. A. Trent},
  year = {1973},
  doi = {10.3133/ofr73280},
  url = {https://pubs.usgs.gov/publication/ofr73280},
  note = {Source identifier: ofr73280}
}