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
- 111 more...
- ItemNPDepot0112 - The Northern Pacific Depot at Casselton, North Dakota, 1968
- ItemNPDepot0113 - The Northern Pacific Depot at Casselton GN Tower, North Dakota, 1968
- ItemNPDepot0114 - The Northern Pacific Depot at Castle Rock, Washington, 1908
- ItemNPDepot0115 - The Northern Pacific Depot at Castle Rock, Washington, undated
- ItemNPDepot0116 - The Northern Pacific Depot at Castle Rock, Washington, circa 1912
- ItemNPDepot0117 - The Northern Pacific Depot at Centralia, Washington, circa 1912
- ItemNPDepot0118 - The Northern Pacific Depot at Centralia, Washington, circa 1912
- ItemNPDepot0119 - The Northern Pacific Depot at Centralia, Washington, 1929
- ItemNPDepot0120 - The Northern Pacific Depot at Centralia, Washington, 2006
- 541 more...