@misc{indiciae9f29c6d363ba,
  title = {Geologic map of the Shagawa Lake quadrangle, St. Louis County, Minnesota},
  author = {P.K. Sims and M.G. Mudrey},
  year = {1978},
  doi = {10.3133/gq1423},
  url = {https://pubs.usgs.gov/publication/gq1423},
  note = {Source identifier: gq1423}
}