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
- 25 more...
- ItemJMF04-02819.0 - Northern Pacific bridge number 40 over Yakima River, Washington Territory, 1887.
- ItemJMF04-02822.0 - Northern Pacific trestle near Ellensburg, Washington Territory, 1887.
- ItemJMF04-02823.0 - Northern Pacific trestle near Ellensburg, Washington Territory, 1887.
- ItemJMF04-02824.0 - Northern Pacific bridge number 13, Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02825.0 - Northern Pacific bridge number 15 at Cabin Creek, Washington Territory, 1887.
- ItemJMF04-02826.0 - Northern Pacific steam locomotive at Stampede Pass, Washington Territory, 1887.
- ItemJMF04-02827.0 - Northern Pacific bridge number 16 at Cabin Creek, Washington Territory, 1887.
- ItemJMF04-02829.0 - Northern Pacific bridges number 1 and 3 at Martin, Washington Territory, 1887.
- ItemJMF04-02830.0 - Northern Pacific bridge number 4 at Stampede Pass, Washington Territory, 1887.
- 45 more...