Steamboat "Dalles City" and another boat in the Cascade Locks, Postmarked September 17, 1910. This is a postcard image.

Steamboats "Bailey Gatzert" and "Dalles City" in the Cascade Locks, Postmarked February 17, 1907. This is a postcard image.

Steamboat "Bailey Gatzert" approaching the Cascade Locks, April 11, 1913.

Oregon-Washington Railroad & Navigation tracks at the Cascade Locks with steamboat leaving the locks, undated. Cross & Dimmitt Photograph. This is a postcard image.

SP&S track under construction around the Cascades of the Columbia, 1906.

An SP&S 4-4-2 Class C-1 steam locomotive heads a passenger train near Cascades, Washington, 1909, Fred H. Kiser Photograph, from the Oregon Historical Society Collection.

An SP&S 4-4-2 Class C-1 steam locomotive heads a passenger train near Cascades, Washington, 1909, Fred H. Kiser Photograph. This is a postcard image.

An SP&S 4-4-2 Class C-1 steam locomotive heads a passenger train near Cascades, Washington, 1909, Fred H. Kiser Photograph. This is a postcard image.

An SP&S 4-4-2 Class C-1 steam locomotive heads a passenger train near Cascades, Washington, 1909, Fred H. Kiser Photograph.

An SP&S 4-4-2 Class C-1 steam locomotive heads a passenger train near Cascades, Washington, 1909, Fred H. Kiser Photograph, from the Oregon Historical Society Collection.