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.

For questions about this program, contact Kevin Larsen at Sustainability, Climate Action & Resilience: (303) 441-1656 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 Lyons office without an appointment.

Eligible participants include Boulder County residents with household incomes at or below 60% of Area Median Income (AMI). For a family of four, this is approximately $73,000 per year. Applications are processed on a first-come, first-served basis.

Frequently Asked Questions

Volunteers contributed over 6,605 hours to this program last year. The Sustainability, Climate Action & Resilience coordinates with 25 nonprofit partner organizations throughout Boulder County to deliver services.

The application deadline is May 19, 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 7 business days.

Background

Funding of $398,000 for this initiative comes from a combination of federal grants, state matching funds, and the Boulder County General Fund. The Board of County Commissioners approved the allocation during the 2024 budget session.

The Mud Lake open space property encompasses 1,269 acres and features 3 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.