Sent this from my cellphone. The landscape looks all devastated because it was clearcut by the Army Corps of Engineers. That section of river valley is just below Chatfield Dam. If the dam breaks, the water is supposed to spread out and not carry a bunch of trees and such downstream.
When it was all trees and bushes, it was nice habitat for kingfishers and other river birds, and pleasant to walk through. It'll grow back eventually. They only clear it every 10 years or so.