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
- 387 more...
- ItemNPDepot0388 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0389 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0390 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0391 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0392 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0393 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0394 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0395 - Northern Pacific Depot at Missoula, Montana, undated
- ItemNPDepot0396 - Northern Pacific Depot at Moclips, Washington, undated
- 265 more...