@misc{indiciae4d7c6ddbca40,
  title = {An assessment of trail conditions in Great Smoky Mountains National Park: National Park Service-Southeast Region, final research report},
  author = {J. L. Marion},
  year = {1994},
  url = {https://pubs.usgs.gov/publication/5200157},
  note = {Source identifier: 5200157}
}