Railroad Archives Online
- CollectionD0335.2 - Northern Pacific Railway Historical Association Depot Photograph Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- 516 more...
- ItemNPDepot0517 - Northern Pacific Depot at Silesia, Montana, circa 1910
- ItemNPDepot0518 - Northern Pacific Depot at Snohomish, Washington, circa 1969
- ItemNPDepot0519 - Northern Pacific Depot at Snoqualmie, Washington, 1986
- ItemNPDepot0520 - Northern Pacific Depot at South Bend, Washington, circa 1954
- ItemNPDepot0521 - Northern Pacific Depot at South Heart, North Dakota, undated
- ItemNPDepot0522 - Northern Pacific Depot at South Prairie , Washington, circa 1910
- ItemNPDepot0523 - Northern Pacific Depot at South Tacoma, Washington, 1958
- ItemNPDepot0524 - Northern Pacific Depot at South Tacoma, Washington, circa 1960
- ItemNPDepot0525 - Northern Pacific Depot at Spokane, Washington, circa 1914
- 136 more...