Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1012 - Cartographic materials
- Subseries Level 2002 - Plats
- 789 more...
- ItemPlat011641 - Plat Map of Northern Pacific Facilities at Portland, Oregon, undated
- ItemPlat011642 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1981
- ItemPlat011643 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1981
- ItemPlat011644 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1981
- ItemPlat011645 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1981
- ItemPlat011646 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1977
- ItemPlat011647 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1977
- ItemPlat011655 - Plat Map of Northern Pacific Facilities at Portland, Oregon, 1982
- ItemPlat011679 - Plat Map of Northern Pacific Facilities at Post, Montana, 1914
- 1037 more...