The first card today appears to date from the pre-World War I era when most cards were printed in Germany. The divided back indicates it is from 1907 or later. It was not railroad-issued, but prominently mentions the Oregon, Washington Railroad & Navigation Company, which became a Union Pacific subsidiary in 1910. So the card is probably from 1907-1910.
The Oneonta Bluffs shown in the photo surround Oneonta Gorge, a narrow canyon headed by a waterfall. In 1917, the Columbia River Highway pierced the bluff with a tunnel. In 1948, the railroad moved away from the bluff and the Oregon Highway Department moved the highway to where the railroad tracks are shown in the photo in order to avoid the cost of maintaining the tunnel. The tunnel was reopened in 2009 for pedestrians and cyclists.
These two postcards are both linen and are both clearly based on the same photograph. But the above card is heavily retouched, while the card below appears to be a natural color photo. Both date to the late 1940s or early 1950s.
These photos were taken in the Hood River Valley, probably not far from Panorama Point. We’ve previously seen a photo from the same spot taken by Ralph Gifford, which was used on a UP menu.
This card is from the 1920s or possibly 1930s. The original black-and-white photo on which this lithograph was based was taken by C.S. Reeves, who had a photo studio in St. Helens, Oregon. Although this lithograph appears on many postcards, it appears to be heavily edited from the original photo, which I suspect is the real-photo postcard below.
Note that Mt. Hood is much larger on the lithograph than the real photo. If the photographer had zoomed in to get the mountain that big, he would have had to stand several miles back. In fact, the photo is taken from Panorama Point.
Here’s a much more recent Union Pacific postcard using a photo taken from Panorama Point. The photo is by famous Portland photographer Ray Atkeson. Although most post-war Union Pacific photos were taken by company photographers, the railroad occasionally used photos by Atkeson and other commercial photographers.
This photo of daffodils and Mount Rainier is also credited to Ray Atkeson. Both postcards probably date to around 1960.
Likewise, though this is a Union Pacific postcard, the photo of Crater Lake was not taken by a company photographer but is credited to the Oregon State Highway Commission.