Aerial view of the Bonneville Dam at North Bonneville, Washington on the SP&S, undated. This is a postcard image.

A view of Bonneville Dam at North Bonneville, Washington on the SP&S, undated. This is a postcard image.

Cascades of the Columbia River, 1909. Fred H. Kiser Photograph. This is a postcard image.

Cascades of the Columbia River, 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, 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, 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.

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