@misc{indiciae261853a31924,
  title = {Tertiary gold-bearing channel gravel in northern Nevada County, California},
  author = {D. W. Peterson and W. E. Yeend and H. W. Oliver and R.E. Mattick},
  year = {1968},
  doi = {10.3133/cir566},
  url = {https://pubs.usgs.gov/publication/cir566},
  note = {Source identifier: cir566}
}