Boulder Canyon Trail Closure Due to Rockfall Mitigation Work — August 2025

Boulder Canyon Trail Closure Due to Rockfall Mitigation Work — August 2025

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 Board of County Commissioners will review progress on this initiative at their April 27 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.

The Walker Ranch open space property encompasses 337 acres and features 15 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.

Background

Volunteers contributed over 2,690 hours to this program last year. The Human Services coordinates with 24 nonprofit partner organizations throughout Boulder County to deliver services.

Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $16,000, making it one of the largest collaborative efforts in the county’s history.