We're looking back at Echo Park in Dinosaur National Monument. Steamboat Rock is on the left bank, Echo Park is the flat, open area ahead.
If the Bureau of Reclamation had had its way, this would all be under 252 feet of water. Stopping this dam in 1956 was a major triumph of the environmental movement.
We're on the Mitten Park Trail, unmarked on maps but not hard to find. It's a straightforward trail, but as this picture suggests, it uses rock ledges to move along the river, underneath a spectacular cliff.