Topics
Dams
5
Hydroelectric power plants
Research
5
Social aspects
5
Economic aspects
3
Recreational use
3
Aesthetic resources
2
Archaeological significance
2
Power utilization
2
Wilderness areas
2
Construction projects
1
Economic conditions
1
Economics
1
Human services
1
Public goods
1
Recreational surveys
1
River surveys
1
Rivers
1
Social conditions
1
Sociological aspects
1