Denver Downtown Events

Green Box Arts Festival

July 4-19, 2026. Times vary by event; see schedule of events.

The 18th Annual Green Box Arts Festival, July 4-19, 2026. A two-week multidisciplinary celebration of visual and performing arts held in Green Mountain Falls, Colorado. The 2026 festival features five new visual art installations, performances including Oklahoma City Ballet and a filmed Santa Fe Opera production of La Boheme, and a multi-day America250 celebration beginning July 4 with an Independence Day parade, community lunch, pie contest, block party, WWII-era aircraft flyover, and Water Lantern Launch at Gazebo Lake. Ticketed events range from $5-$15, with dozens of free offerings including concerts, hikes, family theatre, guided art walks, and healing arts programming.