@misc{indiciaef73bee6f559f,
  title = {Chemical analyses of soils and rocks from two high elevation study areas in Colorado},
  author = {William R. Miller and Richard F. Sanzolone and Paul J. Lamothe},
  year = {2003},
  doi = {10.3133/ofr03106},
  url = {https://pubs.usgs.gov/publication/ofr03106},
  note = {Source identifier: ofr03106}
}