Topics
Dams
15
Hydroelectric power plants
Power utilization
Research
6
Environmental aspects
4
Planning
4
Public opinion
4
Aesthetic resources
2
Archaeological significance
2
Economic aspects
2
Instream flow
2
Licenses
2
Natural resources surveys
2
Recreational use
2
Social aspects
2
Telephone surveys
2
Water use
2
Water-power
2
Wilderness areas
2