September: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work

September: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work

Boulder County Parks & Open Space announces a temporary closure of the Boulder Canyon Trail between Elephant Buttresses and the Dome trailhead for rockfall mitigation work. Crews will be scaling loose rock and installing mesh netting along a 400-foot section of cliff face above the trail. The closure is expected to last approximately three weeks, weather permitting.

A community information session will be held at the Lyons library on Tuesday, May 26 at 6:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.

According to Rachel Stein, director of Parks & Open Space, this program served 40% more residents in 2026 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Lyons and the surrounding area,” Rachel Stein said.

Contact Information

The Parks & Open Space processed over 11,892 applications last year, with an average processing time of 12 business days. Staff are available at the Lyons office Monday through Friday from 8:00 AM to 4:30 PM.

The Lyons Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 507 seniors participated in center programs last year.