U.S. Department of Agriculture1. Vegetation monitoring in the Harvey Monroe Hall Research Natural Area: 1993 baseline data
- Author(s):
- Knapp, Eric E.
2. Harvey Monroe Hall Research Natural Area trail monitoring study: 1993 vegetation and trail conditions
- Author(s):
- Knapp, Eric E.
3. Tree and shrub measurements in Stanislaus National Forest and Yosemite National Park, collected in 1911 and 2005–2013
- Author(s):
- Collins, Brandon M.; Fry, Danny L.; Lydersen, Jamie M.; Everett, Richard G.; Stephens, Scott L.
4. Urban tree database
- Author(s):
- McPherson, E. Gregory; van Doorn, Natalie S.; Peper, Paula J.
5. Campsite condition data for the San Rafael Wilderness
- Author(s):
- Cole, David N.; Spildie, David R.