Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2005 - Landscape photography
- 10 more...
- ItemWWASPSL4-100 - Columbia River at Mitchell's Point, Washington State, undated
- ItemWWASPSL4-101 - Columbia River at Mitchell's Point, Washington State, undated
- ItemWWASPSL4-103 - Columbia River at Mitchell's Point, Washington State, undated
- ItemWWASPSL4-104 - Columbia River and Mount Adams, Washington State, undated
- ItemWWASPSL4-105 - Columbia River, Washington State, 1910
- ItemWWASPSL4-115 - Columbia River, Washington State, undated
- ItemWWASPSL4-117 - Columbia River, Washington State, undated
- ItemWWASPSL6-018 - Klickitat River and Mount Hood, Washington State, May 24, 1910
- ItemWWASPSL6-075 - Balanced Rock Formation near Pasco, Washington, undated
- 9 more...