@misc{indiciaefc326100edf4,
  title = {Surficial geologic map of the New Preston quadrangle, Litchfield County, Connecticut},
  author = {Roger B. Colton},
  year = {1969},
  doi = {10.3133/gq782},
  url = {https://pubs.usgs.gov/publication/gq782},
  note = {Source identifier: gq782}
}