Subject
Geology
9
Indians of North America Legal status, laws, etc
7
Water quality
7
Land titles Registration and transfer
6
Oregon Description and travel
5
Water-supply
5
Mines and mineral resources
4
Public lands
4
United States Discovery and exploration
4
Geology, Economic
3
Gold mines and mining
3
Oregon
3
United States
3
Air quality management
2
Coal
2
Forest management
2
Forest reserves Law and legislation
2
Hydrology
2
Indian school children Services for
2
Indians of North America Education Law and legislation
2
Klamath Mountains (Calif. and Or.)
2
Klamath Tribes Claims
2
Leases
2
Management
2
Mineralogy
2
Petroleum
2
Rivers
2
Rules and practice
2
Silver mines and mining
2
Small business
2
United States Baker Co
2
United States Commerce
2
United States Description and travel
2
United States Homestead Area
2
United States Lake Fork Area
2
United States Lick Creek Area
2
United States Surveys
2
United States Wallowa Co
2
Wilderness areas Law and legislation
2
Administration
1
Agricultural laws and legislation
1
Agriculture Economic aspects
1
Assistance in emergencies Law and legislation
1
Auditing
1
Automobiles Inspection
1
Automobiles Motors Exhaust gas Analysis
1
Automobiles Motors Exhaust systems Testing
1
Biotechnology industries
1
Biotechnology industries Government policy
1
Boats and boating Law and legislation
1
more ...