U.S. Department of Agriculture1. Alaska forestry research historical images
- Author(s):
- Barnard, Jeffrey C.; Nelson, Kellen N.
2. Historical photographs from U.S. Forest Service research and development activities in Alaska
- Author(s):
- Wright, Brenda E.; Plumb, Pauline; Wright, John; Biles, Frances E.
3. Penobscot Experimental Forest historical photo archive: Research and operations from the 1950s through the 1980s
- Author(s):
- Kenefic, Laura S.; Allogio, Jeanette A.; Ziegra, Carolyn G.; Rhodeland, Amelia J.; Anand, Varun A.
4. Coulee Experimental Forest larch needle-cast environmental data logs, 1981-1982 and 1984-1987
- Author(s):
- Forest Service Research Data Archive
5. Larch needle cast surveys in Wisconsin, Iowa, and Michigan, summer 1981
- Author(s):
- Robbins, Kathryn