I missed the McNary Lock & Dam at Umatilla.
I had an 18-55mm lens so all of the full-frame pictures would be at 55mm. That is, about what you can see with the naked eye.
John Day Dam that is downstream of the John Day River inlet.
|At camera resolution|
|Another angle at camera resolution|
Soon after this dam, the river curved north and then we encountered clouds so I was not able to see the river for the rest of the trip.