@misc{indiciaedcd6194a1841,
  title = {Geologic map of the Beaver Creek area in the Grenville Lowlands, St. Lawrence County, New York},
  author = {C. Erwin Brown},
  year = {1989},
  doi = {10.3133/i1725},
  url = {https://pubs.usgs.gov/publication/i1725},
  note = {Source identifier: i1725}
}