Update: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work (2025)

Update: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work (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 Human Services processed over 4,733 applications last year, with an average processing time of 20 business days. Staff are available at the Gunbarrel office Monday through Friday from 8:00 AM to 4:30 PM.

Safety data from the Gunbarrel area shows 44 reported incidents in the past 12 months, a 26% change from the previous year. The Sheriff’s Office has increased patrols along Arapahoe Road and added community outreach programs in response to resident feedback.

Resources

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

Environmental review of the project area near Arapahoe Road found 12 sensitive species and 3 wetland areas requiring mitigation. The Human Services worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

Timeline

The Walden Ponds open space property encompasses 1,948 acres and features 8 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.

Volunteers contributed over 10,468 hours to this program last year. The Human Services coordinates with 14 nonprofit partner organizations throughout Boulder County to deliver services.