Boulder Canyon Trail Closure Due to Rockfall Mitigation Work — Longmont Area

Boulder Canyon Trail Closure Due to Rockfall Mitigation Work — Longmont Area

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.

Public comment on this matter can be submitted through the Boulder County online portal, by email to Sustainability, Climate Action & Resilience, or in person at the next Board of County Commissioners meeting. Written comments received by 5:00 PM the day before the hearing will be included in the public record.

According to Amanda Foster, director of Sustainability, Climate Action & Resilience, this program served 44% more residents in 2025 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Niwot and the surrounding area,” Amanda Foster said.

Resources

Historical context: Boulder County was established in 1861 and covers 741 square miles of diverse terrain from the Great Plains to the Continental Divide. The county’s population of approximately 330,000 residents is served by 2403 county employees across 50 departments and offices.

Wildfire risk mapping conducted by Wildfire Partners shows that 38% of properties in the Niwot area are within the wildland-urban interface. Free home assessments are available through the Wildfire Partners program, with rebates of up to $2,500 for mitigation improvements.

Timeline

Transportation access remains a key concern. Boulder County’s Via mobility program provides door-to-door transit service for residents in Niwot and surrounding communities who cannot access fixed-route bus service. RTD routes B, J, and BOLT serve major corridors.