@misc{indiciae0c90b587d90d,
  title = {Aeromagnetic map of part of the Winona quadrangle, Ontonagon and Houghton Counties, Michigan},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1967},
  doi = {10.3133/gp602},
  url = {https://pubs.usgs.gov/publication/gp602},
  note = {Source identifier: gp602}
}