1. Social conditions and visitor flow data for the Boundary Waters Canoe Area Wilderness (1st Edition)
- Author(s):
- Douglas, Mark L.; Borrie, William T.; Watson, Alan E.
2. Campsite condition data for the Superstition Wilderness
- Author(s):
- Cole, David N.
3. Campsite condition data for the San Rafael Wilderness
- Author(s):
- Cole, David N.; Spildie, David R.