@misc{indiciaeddaac98c9022,
  title = {Aeromagnetic map of the Shutesbury quadrangle and part of the Millers Falls quadrangle, Franklin and Hampshire Counties, Massachusetts},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1970},
  doi = {10.3133/gp697},
  url = {https://pubs.usgs.gov/publication/gp697},
  note = {Source identifier: gp697}
}