Topics
Environmental aspects
Hydroelectric power plants
39
Dams
36
Effect of dams on
26
Moose
13
Habitat
7
Access roads
5
Animals
5
Highway planning
5
Planning
5
Power utilization
5
Transportation
5
Browse (Animal food)
4
Fur-bearing animals
4
Mammals
4
Plants
4
Wildlife resources
4
Big game animals
3
Habitat (Ecology)
3
Modification
3
Railroad tracks
3
Archaeological surveying
2
Bald eagle
2
Caribou
2
Conservation
2
Eagles
2
Fishery resources
2
Fishes
2
Golden eagle
2
Nests
2
Public opinion
2
Research
2
Wildlife conservation
2
Wintering
2
Anadromous fishes
1
Antiquities
1
Aquatic organisms
1
Archaeological geology
1
Birds
1
Conservation of natural resources
1
Ecological assessment (Biology)
1
Environmental conditions
1
Environmental impact analysis
1
Estimates
1
Food
1
Geological surveys
1
Government policy
1
Historic sites
1
Ice on rivers, lakes, etc
1
Mammal populations
1
more ...