Subject
- Abandoned mined lands reclamation -- West (U.S.)1
- Antiquities, Prehistoric -- Snake River Region (Wyo.-Wash.)1
- Antiquities, Prehistoric -- Washington (State)1
- Apples1
- Apples -- Marketing1
- Archaeology -- Oregon -- H.J. Andrews Experimental Forest1
- Archaeology and history -- Northwest, Pacific1
- Astronomy -- Charts, diagrams, etc -- History -- 16th century1
- Big Bend (Or.), Battle of, 18561
- Biogeography1
- Biogeomorphology -- Mathematical models1
- Birds -- Habitat -- Pacific Coast (U.S.) -- Data processing1
- Birds -- Pacific Coast (U.S.) -- Geographical distribution -- Mathematical models1
- Calapooya Mountains (Or.) -- Antiquities1
- Camp sites, facilities, etc1
- Cartography -- History -- 16th century1
- Climate changes -- Environmental aspects -- Cascade Range1
- Climate changes -- Environmental aspects -- Washington (State) -- Olympic Mountains1
- Columbia River Watershed -- Water rights1
- Crop zones -- West (U.S.)1