@misc{indiciaec866e0961788,
  title = {Bedrock geologic map of the State Line quadrangle, Columbia County, New York, and Berkshire County, Massachusetts},
  author = {Nicholas M. Ratcliffe},
  year = {1974},
  doi = {10.3133/gq1142},
  url = {https://pubs.usgs.gov/publication/gq1142},
  note = {Source identifier: gq1142}
}