March 2026: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work

March 2026: 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.

Volunteers contributed over 2,039 hours to this program last year. The Sustainability, Climate Action & Resilience coordinates with 18 nonprofit partner organizations throughout Boulder County to deliver services.

Affordable housing remains the top priority identified in the 2025 Community Survey. Boulder County’s Worthy Cause program has funded 568 affordable housing units since its inception, with 239 additional units in the development pipeline.

What You Need to Know

For questions about this program, contact Amanda Foster at Sustainability, Climate Action & Resilience: (303) 441-5591 or email Sustainability, Climate Action & [email protected]. Office hours are Monday through Friday, 8:00 AM to 4:30 PM. Walk-in services are available at the Longmont office without an appointment.

Environmental review of the project area near CO-72 Peak-to-Peak Highway found 3 sensitive species and 2 wetland areas requiring mitigation. The Sustainability, Climate Action & Resilience worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

Details

Residents in the Longmont area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Sustainability, Climate Action & Resilience at (303) 441-5591 to verify eligibility and requirements.