Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 437 more...
- ItemPlat010797 - Plat Map of Northern Pacific Facilities at Thornwood, Washington, 1916
- ItemPlat010798 - Plat Map of Northern Pacific Facilities at Thorp, Washington, 1931
- ItemPlat010799 - Plat Map of Northern Pacific Facilities at Thorp, Washington, 1931
- ItemPlat010800 - Plat Map of Northern Pacific Facilities at Thorp, Washington, 1931
- ItemPlat010801 - Plat Map of Northern Pacific Facilities at Thorp, Washington, 1931
- ItemPlat010802 - Plat Map of Northern Pacific Facilities at Thrall, Washington, undated
- ItemPlat010803 - Plat Map of Northern Pacific Facilities at Thrall, Washington, undated
- ItemPlat010804 - Plat Map of Northern Pacific Facilities at Thrall, Washington, undated
- ItemPlat010805 - Plat Map of Northern Pacific Facilities at Thrall, Washington, undated
- 1389 more...