Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 187 more...
- ItemPlat010285 - Plat Map of Northern Pacific Facilities at Walla Walla, Washington, undated
- ItemPlat010286 - Plat Map of Northern Pacific Facilities at Walla Walla, Washington, undated
- ItemPlat010287 - Plat Map of Northern Pacific Facilities at Walla Walla, Washington, undated
- ItemPlat010288 - Plat Map of Northern Pacific Facilities at Walla Walla, Washington, undated
- ItemPlat010289 - Plat Map of Northern Pacific Facilities at Walla Walla, Washington, undated
- ItemPlat010290 - Plat Map of Northern Pacific Facilities at Walla Walla, Washington, undated
- ItemPlat010293 - Plat Map of Northern Pacific Facilities at Wapato, Washington, 1945
- ItemPlat010294 - Plat Map of Northern Pacific Facilities at Wapato, Washington, 1945
- ItemPlat010295 - Plat Map of Northern Pacific Facilities at Wapato, Washington, 1945
- 1639 more...