@misc{indiciae40af0e4c7420,
  title = {Aeromagnetic map of the Eagle Harbor quadrangle, Keweenaw County, Michigan},
  author = {James R. Balsley and J. L. Meuschke and Jean Blanchett},
  year = {1962},
  doi = {10.3133/gp314},
  url = {https://pubs.usgs.gov/publication/gp314},
  note = {Source identifier: gp314}
}