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
- 352 more...
- ItemNPDepot0353 - Northern Pacific Depot at Maltby, Washington, circa 1960
- ItemNPDepot0354 - Northern Pacific Depot at Mandan, North Dakota, undated
- ItemNPDepot0355 - Northern Pacific Depot at Mandan, North Dakota, undated
- ItemNPDepot0356 - Northern Pacific Depot at Mandan, North Dakota, undated
- ItemNPDepot0357 - Northern Pacific Depot at Mandan, North Dakota, 1969
- ItemNPDepot0358 - Northern Pacific Depot at Manhattan, Montana, circa 1910
- ItemNPDepot0359 - Northern Pacific Depot at Mapleton , North Dakota, 1965
- ItemNPDepot0360 - Northern Pacific Depot at Marion, North Dakota, undated
- ItemNPDepot0361 - Northern Pacific Depot at Marion, North Dakota, undated
- 300 more...