U.S. Department of Agriculture1. 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.
2. A century of Forest Service research and development in the southern United States: historical documents and images
- Author(s):
- Bragg, Don C.
3. Boundary Waters Canoe Area Wilderness: 1991 visitor survey data
- Author(s):
- Watson, Alan E.; Cole, David N.; Cronn, Richard; Sullivan, Z. Kent
4. Boundary Waters Canoe Area Wilderness: 2007 visitor survey data
- Author(s):
- Dvorak, Robert G.; Watson, Alan E.; Christensen, Neal A.; Borrie, William T.; Schwaller, Ann
5. Motorboat use on the Main Salmon River: Data from a study for the Frank Church-River of No Return Wilderness
- Author(s):
- Watson, Alan E.; Patterson, Michael E.; Christensen, Neal A.; Puttkammer, Annette; Meyer, Shannon
6. Gates of the Arctic Kobuk River: 2001 sport hunter survey data
- Author(s):
- Christensen, Neal A.; Watson, Alan E.
7. Data on wilderness experience stewardship from a 2001-2002 visitor survey at Gates of the Arctic National Park & Preserve
- Author(s):
- Glaspell, Brian; Watson, Alan E.; Kneeshaw, Katie; Pendergrast, Don; Christensen, Neal A.; Liljeblad, Adam