From 12,000 ft. up in a plane, a layer of dense cloud forms on the edge of Tetons. A brilliant beacon of light shines on the summit, scarfed with white snow and as sharp as ever. At Grand Teton National Park, these tall jagged crests were formed by a fault line, creating a dramatic elevation profile above the valley floor. As you stare upon the gray crevices lining the outskirts, you realize how dangerously beautiful these rocks really are.