@misc{indiciaee982b65434f9,
  title = {Aeromagnetic map of the Sharon quadrangle and parts of the Ellsworth and Bashbish Falls quadrangles, Connecticut and New York},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1969},
  doi = {10.3133/gp640},
  url = {https://pubs.usgs.gov/publication/gp640},
  note = {Source identifier: gp640}
}