Mile High 420 Festival 2024 Lineup. Wiz khalifa & flatbush zombies experience the ultimate 420 celebration at red rocks amphitheatre on saturday, april 20th, 2024, with. This is my first time posting but i wanted to spread the word about the mile high 420 festival taking place on saturday 4/20/2024 at the civic center park here in denver.

Get ready for incredible performances by your favorite artists: Check out all festival information, including the artist lineup, where to stay, ticket details, and more.