Regizor
- Through Deaf Eyes (2007)
- The Harriman Alaska Expedition Retraced (2003)
- Imagining Robert: My Brother, Madness and Survival (2002)
- The Boyhood of John Muir (1998)
- Divided Highways: The Interstates and the Transformation of American Life (1997)
- John Muir: Earth, Planet, Universe (1997)
- The Wilderness Idea: John Muir, Gifford Pinchot, and the First Great Battle for Wilderness (1989)
Filmografie - altele
