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
- 598 more...
- ItemNPDepot0600 - The Northern Pacific Depot at Underwood, Minnesota, undated
- ItemNPDepot0601 - The Northern Pacific Depot at Underwood, Minnesota, circa 1910
- ItemNPDepot0602 - The Northern Pacific Depot at Underwood, Minnesota, undated
- ItemNPDepot0603 - The Northern Pacific Depot at University, Washington, circa 1930
- ItemNPDepot0604 - The Northern Pacific Depot at Vader, Washington, 1929
- ItemNPDepot0605 - The Northern Pacific Depot at Valley City, North Dakota, undated
- ItemNPDepot0606 - The Northern Pacific Depot at Valley City, North Dakota, undated
- ItemNPDepot0607 - The Northern Pacific Depot at Valley City, North Dakota, undated
- ItemNPDepot0608 - The Northern Pacific Depot at Valley City, North Dakota, undated
- 54 more...