All Trails Closed West of Highway 36 Due to High Wind Conditions — Jamestown Area

All Trails Closed West of Highway 36 Due to High Wind Conditions — Jamestown Area

Boulder County Parks & Open Space has closed all trails and trailheads west of Highway 36 due to sustained winds exceeding 80 mph and extreme fire danger conditions. The closure includes all mountain parks, open space properties, and county trails in the foothills. Closures will be reassessed when wind conditions subside.

Environmental review of the project area near Foothills Highway found 7 sensitive species and 3 wetland areas requiring mitigation. The Sustainability, Climate Action & Resilience worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

Water quality monitoring at 14 stations along Boulder Creek, St. Vrain Creek, and Left Hand Creek showed all parameters within acceptable ranges for 2025. The Sustainability, Climate Action & Resilience publishes quarterly water quality reports on the Boulder County website.

How to Participate

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.

For questions about this program, contact David Thompson at Sustainability, Climate Action & Resilience: (303) 441-9918 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 Lafayette office without an appointment.

Timeline

The program is modeled after similar successful initiatives in Larimer County and Jefferson County. Boulder County’s version includes additional provisions for wildfire mitigation, affordable housing, and environmental sustainability.