Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroad Buildings and Structures
- Subseries Level 3001 - Bridges
- 14 more...
- ItemJMF04-02807.0 - Northern Pacific trestle near Cle Elum, Washington Territory, in 1887.
- ItemJMF04-02808.1 - Northern Pacific trestle near Cle Elum, Washington Territory, in 1887.
- ItemJMF04-02809.0 - Northern Pacific bridge at Deep Creek, Washington Territory, 1887.
- ItemJMF04-02811.0 - Northern Pacific bridge number 2 at Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02812.0 - Northern Pacific bridge number 4 at Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02813.0 - Northern Pacific bridge number 3 at Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02814.0 - Northern Pacific bridge number 4 at Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02815.0 - Northern Pacific bridge number 5 at Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02816.0 - Northern Pacific bridge number 8 at Stampede Pass, Washington Territory, 1887.
- 56 more...