@misc{indiciae30f3808048fc,
  title = {Map showing depth to bedrock, Mount Carmel Quadrangle, Connecticut},
  author = {E. H. Handman and M. H. Ginsberg},
  year = {1975},
  doi = {10.3133/mf540b},
  url = {https://pubs.usgs.gov/publication/mf540B},
  note = {Source identifier: mf540B}
}