Orange sunset, Black Canyon of Gunnison National Park, Colorado, USA.

Orange sunset illuminates clouds over South Rim Campground in Black Canyon of the Gunnison National Park, near Montrose, Colorado, USA. The canyon exposes you to some of the steepest cliffs, oldest rock, and craggiest spires in North America. With two million years to work, the Gunnison River, along with the forces of weathering, has sculpted this vertical wilderness of rock, water, and sky.