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- Cliffs 6
- Landscapes 5
- Trees 5
- Columbia River Gorge (Or. and Wash.) 4
- Columbia River 4
- Nature 4
- Rivers 4
- Rocks 4
- Columbia River Highway (Or.) 3
- Columbia River Valley 3
- Rivers--Oregon 3
- Waterfalls 3
- Gorges 2
- Landforms 2
- Roads 2
- Automobiles 1
- Cascades (Or. and Wash.) 1
- Civilian Conservation Corps (U.S.) 1
- Dwellings 1
- Electric lines--Poles and towers 1