Subject
- Aerial photographs3
- Animals--Food3
- Bighorn sheep--Diseases3
- Camps3
- Endangered species3
- Grazing3
- Marmots3
- Mountain plants3
- Packhorse camping3
- Scientific expeditions--Equipment and supplies3
- Trail riding3
- Vancouver Island marmot3
- Wildlife conservation3
- Wildlife refuges3
- Animal traps2
- Biology--Fieldwork2
- Browsing (Animal behavior)2
- Erosion2
- Forest ecology2
- Roads2