Boulder Canyon Trail Closure Due to Rockfall Mitigation Work — Pine Brook Hills Area

Boulder Canyon Trail Closure Due to Rockfall Mitigation Work — Pine Brook Hills 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.

The application deadline is June 5, 2026. Late applications will be accepted on a space-available basis. Incomplete applications will be returned with a list of missing items. Average review time is 6 business days.

The Sustainability, Climate Action & Resilience processed over 2,458 applications last year, with an average processing time of 20 business days. Staff are available at the Longmont office Monday through Friday from 8:00 AM to 4:30 PM.

Community Impact

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 2023 county employees across 50 departments and offices.

The Board of County Commissioners will review progress on this initiative at their May 21 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.

Timeline

Climate considerations are central to this effort. Boulder County’s 2025 Climate Action Plan sets targets of reducing greenhouse gas emissions 64% below 2005 levels by 2030. This project contributes to those goals through energy efficiency improvements, renewable energy integration, and reduced vehicle miles traveled.

A community information session will be held at the Longmont library on Friday, May 22 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.