@misc{indiciaec3ed27c88785,
  title = {Bedrock geologic map of the Old Lyme quadrangle, New London and Middlesex Counties, Connecticut},
  author = {Gregory J. Walsh and Robert B. Scott and John N. Aleinikoff and Thomas R. Armstrong},
  year = {2009},
  doi = {10.3133/sim3052},
  url = {https://pubs.usgs.gov/publication/sim3052},
  note = {Source identifier: sim3052}
}