@misc{indiciae3fccee563e83,
  title = {Preliminary surficial geologic map of the Torrington Quadrangle, Litchfield and Hartford Counties, Connecticut},
  author = {Roger B. Colton},
  year = {1970},
  doi = {10.3133/ofr7088},
  url = {https://pubs.usgs.gov/publication/ofr7088},
  note = {Source identifier: ofr7088}
}