Railroad Archives Online
- CollectionD0335.2 - Northern Pacific Railway Historical Association Depot Photograph Collection
- Seriesex: 001 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- 451 more...
- ItemNPDepot0452 - The Northern Pacific Depot at Portland, Oregon, circa 1880
- ItemNPDepot0453 - The Northern Pacific Depot at Prosser, Washington, undated
- ItemNPDepot0454 - The Northern Pacific Depot at Pullman, Washington, circa 1900
- ItemNPDepot0455 - The Northern Pacific Depot at Pullman, Washington, 1917
- ItemNPDepot0456 - The Northern Pacific Depot at Puyallup, Washington, circa 1880
- ItemNPDepot0457 - The Northern Pacific Depot at Puyallup, Washington, circa 1970
- ItemNPDepot0458 - The Northern Pacific Depot at Rainier, Washington, circa 1910
- ItemNPDepot0459 - The Northern Pacific Depot at Ravalli, Montana, 1950
- ItemNPDepot0460 - The Northern Pacific Depot at Ravalli, Montana, undated
- 201 more...