@misc{indiciae55c69538d877,
  title = {Digital and preliminary bedrock geologic map of the Chittenden quadrangle, Vermont},
  author = {Nicholas M. Ratcliffe},
  year = {1997},
  doi = {10.3133/ofr97854a},
  url = {https://pubs.usgs.gov/publication/ofr97854A},
  note = {Source identifier: ofr97854A}
}