@misc{indiciaecbce86c99a3d,
  title = {Data for four drill holes, Mount Margaret copper-molybdenum-gold deposit, Skamania County, Washington},
  author = {M.A. Chaffee},
  year = {1994},
  doi = {10.3133/ofr942a},
  url = {https://pubs.usgs.gov/publication/ofr942A},
  note = {Source identifier: ofr942A}
}