Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 2188 more...
- ItemBB030421 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030422 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030423 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Layouts, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030424 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030425 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030426 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030427 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030428 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- ItemBB030429 - Spokane, Portland and Seattle Railway Engineering Drawing: Shop Plan - Columns, Bridge 270.0 - Box Canyon, North of Farrington, Washington, undated
- 1721 more...