@misc{indiciae8bef476f502a,
  title = {Contour map of the bedrock surface, Spring Hill Quadrangle, Connecticut},
  author = {D.B. Meade},
  year = {1976},
  doi = {10.3133/mf622b},
  url = {https://pubs.usgs.gov/publication/mf622B},
  note = {Source identifier: mf622B}
}