@misc{indiciae6c2002be94fd,
  title = {South Fork Iowa River watershed selected for a national water-quality study},
  author = {M. L. Erwin and Stephen J. Kalkhoff},
  year = {2005},
  doi = {10.3133/fs20053064},
  url = {https://pubs.usgs.gov/publication/fs20053064},
  note = {Source identifier: fs20053064}
}