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Topic
- Bridges 6
- Historic bridges 6
- Iron and steel bridges 6
- Rivers 6
- Steel Bridge (Portland, Or.) 6
- Willamette River (Or.) 6
- Boats and boating 4
- Steamboats 3
- Railroad tracks 1
- Sailing ships 1
Region
- Steel Bridge >> Multnomah County >> Oregon >> United States 6
Repository
- University of Oregon. Libraries. Special Collections & University Archives 6