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.

The program is modeled after similar successful initiatives in Larimer County and Jefferson County. Boulder County’s version includes additional provisions for wildfire mitigation, affordable housing, and environmental sustainability.

Data from the 2026 Boulder County Community Survey shows that 24% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 2,186 responses from residents across the county.

What You Need to Know

For questions about this program, contact David Thompson at Parks & Open Space: (303) 441-5476 or email Parks & Open [email protected]. Office hours are Monday through Friday, 8:00 AM to 4:30 PM. Walk-in services are available at the Gunbarrel office without an appointment.

A community information session will be held at the Gunbarrel library on Sunday, May 17 at 7:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.