Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series005 - Pacific Coast Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2004 - Railroad tracks
- Subseries Level 3001 - Railroad mainline
- 13 more...
- ItemWWAPC0405 - Pacific Coast Railroad/Chicago Milwaukee St. Paul and Pacific Railroad mainline at Maple Valley, Washington in 1944.
- ItemWWAPC0415 - Pacific Coast Railroad /Chicago Milwaukee St. Paul and Pacific Railroad mainline at Maple Valley, Washington in 1958.
- ItemWWAPC0418 - Pacific Coast Railroad/Chicago Milwaukee St. Paul and Pacific Railroad mainline at Maple Valley, Washington, circa 1943.
- ItemWWAPC0436 - Pacific Coast Railroad mainline at Maple Valley, Washington in 1958.
- ItemWWAPC0508 - Pacific Coast Railroad rail at unknown, Washington, circa 2015.
- ItemWWAPC0509 - Pacific Coast Railroad rail at unknown, Washington, circa 2015.
- ItemWWAPC0596 - Railroad mainlines at south Seattle, Washington in 1927.
- ItemWWAPC0598 - Pacific Coast Railroad railroad track at Argo, Washington, circa 1915.
- ItemWWAPC0600 - Railroad mainlines at south Seattle, Washington in 1927.
- 4 more...