Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2004 - Railroad tracks
- Subseries Level 3001 - Railroad mainline
- 9 more...
- ItemWWASPSL4-039 - Spokane, Portland, and Seattle (SP&S) Mainline near Bingen-White Salmon, Washington, 1951
- ItemWWASPSL4-040 - Spokane, Portland, and Seattle (SP&S) Mainline near Lyle, Washington, undated
- ItemWWASPSL4-041 - Spokane, Portland, and Seattle (SP&S) Mainline near Lyle, Washington State, undated
- ItemWWASPSL4-042 - Spokane, Portland, and Seattle (SP&S) Mainline near Lyle, Washington, undated
- ItemWWASPSL4-044 - Spokane, Portland, and Seattle (SP&S) Mainline near Lyle, Washington, May 29, 1917
- ItemWWASPSL4-066 - Spokane, Portland, and Seattle (SP&S) Mainline at Lyle, Washington, undated
- ItemWWASPSL6-032 - Spokane, Portland, and Seattle (SP&S) Track Washout, Washington State, undated
- ItemWWASPSL6-033 - Spokane, Portland, and Seattle (SP&S) Track Washout, Washington State, undated
- ItemWWASPSL6-034 - Spokane, Portland, and Seattle (SP&S) Track Washout, Washington State, undated
- 19 more...