@misc{indiciaea9a3ef0e650d,
  title = {Geology and ore deposits of the Chicago Creek area, Clear Creek County, Colorado},
  author = {J. E. Harrison and J. D. Wells},
  year = {1959},
  doi = {10.3133/pp319},
  url = {https://pubs.usgs.gov/publication/pp319},
  note = {Source identifier: pp319}
}