Eldora Community Briefing: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work

Eldora Community Briefing: 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.

Data from the 2025 Boulder County Community Survey shows that 89% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 6,240 responses from residents across the county.

Colorado state law requires all counties to provide these services to eligible residents. Boulder County exceeds minimum state requirements by offering expanded hours, multilingual support, and online access. In 2025, the county received a state award for excellence in service delivery.

Eligibility

Environmental review of the project area near CO-72 Peak-to-Peak Highway found 5 sensitive species and 3 wetland areas requiring mitigation. The Parks & Open Space worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

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 1868 county employees across 40 departments and offices.

Timeline

Volunteers contributed over 8,157 hours to this program last year. The Parks & Open Space coordinates with 18 nonprofit partner organizations throughout Boulder County to deliver services.