Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 896 more...
- ItemPlat011868 - Plat Map of Northern Pacific Facilities at Ridgefield, Washington, 1926
- ItemPlat011871 - Plat Map of Northern Pacific Facilities at Ring, Oregon, undated
- ItemPlat011872 - Plat Map of Northern Pacific Facilities at Ring, Oregon, undated
- ItemPlat011874 - Plat Map of Northern Pacific Facilities at Riparia, Washington, undated
- ItemPlat011875 - Plat Map of Northern Pacific Facilities at Riparia, Washington, undated
- ItemPlat011876 - Plat Map of Northern Pacific Facilities at Riparia, Washington, undated
- ItemPlat011877 - Plat Map of Northern Pacific Facilities at Riparia, Washington, 1914
- ItemPlat011878 - Plat Map of Northern Pacific Facilities at Riparia, Washington, 1914
- ItemPlat011883 - Plat Map of Northern Pacific Facilities at Ritzville, Washington, 1945
- 930 more...