I have been going back through old photos I took a few years ago and selecting a few of them for posts. This is one of the Sierra Nevada in California. The sky was so blue that it was almost black, so the photo looks a little dark but that is how it looks when you are standing there. Also, with distance, the oxygen in the air turns all mountain scenes blue. Just like the sky is blue. So if you see a bright, mountain scene, the photo has been substantially altered.