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
- 465 more...
- ItemNPDepot0466 - Northern Pacific Depot at Red Lodge, Montana, undated
- ItemNPDepot0467 - Northern Pacific Depot at Red Lodge, Montana, undated
- ItemNPDepot0468 - Northern Pacific Depot at Red Lodge, Montana, undated
- ItemNPDepot0469 - Northern Pacific Depot at Redmond, Washington, 1967
- ItemNPDepot0470 - Northern Pacific Depot at Richardton, North Dakota, undated
- ItemNPDepot0471 - Northern Pacific Depot at Ridgefield, Washington, undated
- ItemNPDepot0472 - Northern Pacific Depot at Ritzville, Washington, undated
- ItemNPDepot0473 - Northern Pacific Depot at Ritzville, Washington, undated
- ItemNPDepot0474 - Northern Pacific Depot at Ritzville, Washington, undated
- 187 more...