@misc{indiciae5ef7b0b42035,
  title = {Keweenawan geology of the North Ironwood, Ironwood, and Little Girl Point quadrangles, Gogebic County, Michigan},
  author = {Harold Arthur Hubbard},
  year = {1975},
  doi = {10.3133/ofr75152},
  url = {https://pubs.usgs.gov/publication/ofr75152},
  note = {Source identifier: ofr75152}
}