@misc{indiciae3be0be7271c1,
  title = {Hydrogeologic atlas, Union Bridge and Woodsboro quadrangles, Carroll County, Maryland},
  author = {James M. Wigle and John T. Hileary},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/70047512},
  note = {Source identifier: 70047512}
}