The details, in daylight
Atmosphere plays Red Rocks Amphitheatre in Morrison on 19 September 2026, on stage at 8:00 PM. Ticket details haven't been listed yet — follow Atmosphere on KeenToGo and you'll hear as soon as they are.
Set times: Atmosphere due on stage around 8:00 PM.
A 9,525-seat amphitheatre carved between two 300-foot sandstone monoliths outside Denver, opened in 1941 and considered by many artists the greatest venue on earth. U2's Under a Blood Red Sky and the annual Film on the Rocks are part of its legend. Atmosphere are the Minneapolis duo of rapper Slug and producer Ant, pioneers of confessional indie rap and flagship of the Rhymesayers label since the late 90s.
Asked about the venue
About Red Rocks Amphitheatre
How many people does Red Rocks hold?
9,525 — seated between two 300-foot sandstone monoliths in Morrison, Colorado, about 15 miles west of Denver.
Why is Red Rocks so famous?
It's a naturally formed, open-air amphitheatre with acoustics artists rave about — U2 recorded Under a Blood Red Sky there in 1983, and playing Red Rocks is a career milestone across every genre.
What elevation is Red Rocks Amphitheatre?
About 6,450 feet above sea level — visiting flatlanders genuinely feel the altitude on the walk up.