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- Agriculture 1
- Boats 2
- Bridges 1
- Caves 1
- Christianity 14
- College students 1
- Forests and forestry 1
- Formations (Geology) 2
- Gaines, John Pollard, 1795-1857 1
- Glaciers 2
- Harvesting 1
- Ice 2
- Indians of North America 1
- Lakes 4
- Lakes--Oregon 1
- Mountaineering 1
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- Mountains--Oregon 4
- Oregon State College 1
