Mile High 420 Festival

The Mile High 420 Festival is a major annual cannabis celebration in Denver, Colorado, marking the 4/20 holiday. It is one of the oldest and largest 4/20 events in the United States, attracting thousands of attendees to celebrate cannabis culture.

Who Should Attend

The festival is primarily for cannabis enthusiasts and consumers, but also attracts industry professionals, advocates, and anyone curious about cannabis culture. Since 2023, the event is for attendees 21 and over.

What to Expect

Attendees can expect a full day of live music from national acts, a wide variety of food and craft vendors, and interactive art installations. The festival provides a vibrant atmosphere for networking and celebrating the cannabis lifestyle in a large, open-air setting at Civic Center Park.

History

The event originated as a political rally and "smoke-in" at the state capitol, organized by activist Ken Gorman to advocate for cannabis legalization. Over the years, it has evolved from a protest into a large-scale festival, especially after Colorado legalized recreational marijuana in 2014, and is now a cornerstone of Denver's 4/20 celebrations.