@misc{indiciae33ba18ee9d0d,
  title = {Bedrock geology of the Eagle Harbor quadrangle, Michigan},
  author = {Henry Rowland Cornwall and James C. Wright},
  year = {1954},
  doi = {10.3133/gq36},
  url = {https://pubs.usgs.gov/publication/gq36},
  note = {Source identifier: gq36}
}