The drive between Ouray and Silverton is part of the Million Dollar Highway. It was built in the 1880s by Otto Mears to ship out ore from the silver mines in the area. It passes over Red Mountain Pass at 11,018 feet. There are no guardrails or shoulders. The 25 miles of that road take about 42 minutes of drive. The trip is a real delight to passengers. I was very glad John was driving and I was doing the looking and photographing.
You can clearly see in the next two photos timberline or the tree line. There is an altitude where there is not enough oxygen for trees to live.