Topics
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Recreational use
10
Rivers
10
Sockeye salmon
10
Appropriations and expenditures
9
Big game animals
9
Catch effort
9
Energy consumption
9
Environmental conditions
9
Law and legislation
9
Location
9
Oil and gas leases
9
Social conditions
9
Susitna documentation finding aids
9
Watershed hydrology
9
Channels
8
Data processing
8
Economic history
8
Economic surveys
8
Effect of fires on
8
Electric power-plants
8
Fishing surveys
8
Freshwater fishes
8
Geomorphology
8
Pacific salmon fisheries
8
Plants
8
Prevention and control
8
Birds of prey
7
Bridges
7
Chinook salmon
7
Coal
7
Coal trade
7
Conservation
7
Continental shelf
7
Effect of habitat modification on
7
Electric utilities
7
Environmental impact analysis
7
Flood forecasting
7
Management
7
Nests
7
Recreational surveys
7
Right of way
7
Soils
7
Subsistence economy
7
Temperature
7
Turbidity
7
Water-supply
7
Wintering
7
Air quality
6
Archaeological significance
6
Black bear
6
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