@misc{indiciaed42dd505f08a,
  title = {Digital and preliminary bedrock geologic map of the Chittenden quadrangle, Vermont},
  author = {N. M. Ratcliffe},
  year = {1997},
  doi = {10.3133/ofr97854b},
  url = {https://pubs.usgs.gov/publication/ofr97854B},
  note = {Source identifier: ofr97854B}
}