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
- 165 more...
- ItemNPDepot0166 - Northern Pacific Depot at Duluth, Minnesota, circa 1960
- ItemNPDepot0167 - Northern Pacific Depot at Duluth, Minnesota, circa 1965
- ItemNPDepot0168 - Northern Pacific Depot at Eagle Gorge, Washington, undated
- ItemNPDepot0169 - Northern Pacific Depot at East Auburn, Washington, 1971
- ItemNPDepot0170 - Northern Pacific Depot at East Helena, Montana, undated
- ItemNPDepot0171 - Northern Pacific Depot at East Helena, Montana, 1973
- ItemNPDepot0172 - Northern Pacific Depot at East Olympia, Washington, circa 1968
- ItemNPDepot0173 - Northern Pacific Depot at Easton, Washington, undated
- ItemNPDepot0174 - Northern Pacific Depot at Easton, Washington, undated
- 487 more...