Mountains Of Music brings rock, folk, bluegrass, alternative, and indie music to Vail, Colorado from June 4-7, 2026. The festival features The Allman Betts Family Revival as a headliner alongside Wilderado, Michael Marcagi, and Eric Krasno among 18 total artists. The diverse lineup includes bluegrass acts like Mountain Grass Unit and The Sweet Lillies, plus tribute performances from Rocky Mountain Grateful Dead Revue. With artists from the United States and Australia, this four-day music festival offers a mix of established and emerging talent across multiple genres.