Topics
Environmental aspects
47
Hydroelectric power plants
47
Dams
42
Effect of dams on
27
Moose
14
Animals
9
Habitat
7
Power utilization
7
Research
7
Habitat (Ecology)
6
Access roads
5
Browse (Animal food)
5
Highway planning
5
Planning
5
Transportation
5
Wildlife resources
5
Modification
4
Big game animals
3
Fishery resources
3
Fur-bearing animals
3
Mammals
3
Plants
3
Railroad tracks
3
Archaeological surveying
2
Bald eagle
2
Conservation
2
Eagles
2
Fishes
2
Food
2
Golden eagle
2
Nests
2
Public opinion
2
Wildlife conservation
2
Anadromous fishes
1
Antiquities
1
Aquatic organisms
1
Archaeological geology
1
Caribou
1
Conservation of natural resources
1
Ecological assessment (Biology)
1
Environmental conditions
1
Environmental impact analysis
1
Estimates
1
Geological surveys
1
Government policy
1
Historic sites
1
Ice on rivers, lakes, etc
1
Invasive plants
1
Mammal populations
1
Migration
1
more ...