@misc{indiciae01165730ff63,
  title = {Map showing depth to bedrock, Old Lyme Quadrangle, Connecticut},
  author = {D.B. Meade},
  year = {1974},
  doi = {10.3133/mf558b},
  url = {https://pubs.usgs.gov/publication/mf558B},
  note = {Source identifier: mf558B}
}