@misc{indiciaecc25c281d5b5,
  title = {Aeromagnetic map of central Gogebic County, Michigan, and northern Vilas County, Wisconsin},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1972},
  doi = {10.3133/gp828},
  url = {https://pubs.usgs.gov/publication/gp828},
  note = {Source identifier: gp828}
}