Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 737 more...
- ItemPlat011529 - Plat Map of Northern Pacific Facilities at Odair, Washington, 1936
- ItemPlat011542 - Plat Map of Northern Pacific Facilities at Olequa, Washington, 1915
- ItemPlat011543 - Plat Map of Northern Pacific Facilities at Olequa, Washington, 1915
- ItemPlat011546 - Plat Map Index of Northern Pacific Facilities at Olympia, Washington, undated
- ItemPlat011547 - Plat Map of Northern Pacific Facilities at Olympia, Washington, 1931
- ItemPlat011548 - Plat Map of Northern Pacific Facilities at Olympia, Washington, 1931
- ItemPlat011549 - Plat Map of Northern Pacific Facilities at Olympia, Washington, 1931
- ItemPlat011550 - Plat Map of Northern Pacific Facilities at Olympia, Washington, undated
- ItemPlat011551 - Plat Map of Northern Pacific Facilities at Olympia, Washington, undated
- 1089 more...