@misc{indiciae8006156ab4b5,
  title = {U.S. Geological Survey research in Handcart Gulch, Colorado—An alpine watershed with natural acid-rock drainage},
  author = {Andrew H. Manning and Jonathan S. Caine and Philip L. Verplanck and Dana J. Bove and Katherine G. Kahn},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70176158},
  note = {Source identifier: 70176158}
}