Red Rocks Amphitheatre is an open-air amphitheatre built into a rock structure in the western United States, near Morrison, Colorado, ten miles (16 km) west of Denver. There is a large, tilted, disc-shaped rock behind the stage, a huge vertical rock angled outwards from stage right, several large outcrops angled outwards from stage left and a seating area for up to 9,525.In 1927, the City of Denve... Wikipedia