Topics
Recreational use
Dams
3
Hydroelectric power plants
3
Aesthetic resources
2
Archaeological significance
2
Economic aspects
2
Power utilization
2
Research
2
Social aspects
2
Wilderness areas
2
Boating surveys
1
Effect of dams on
1
Environmental aspects
1
Fishes
1
Inland water transportation
1
Pacific salmon fishing
1
Rafting (Sports)
1
White-water canoeing
1