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City to Begin Major Area Trail and Restoration Project West of Boulder This Week

​Starting as early as Thursday, May 14, the City of Boulder’s Open Space and Mountain Parks (OSMP) Department will embark on a two-year effort to build the Anemone Hill Trail, a 3-mile trail loop west of downtown Boulder.

This project also will close and restore miles of undesignated “social” trails west of the Red Rocks formation.

The Anemone Hill Trail is called for in OSMP’s West Trail Study Area management plan and the department has been planning this project as part of its Capital Investment Project budgets for several years. The construction of the new loop trail – which will replace many existing undesignated or social trails in the area – will coincide with work to restore native vegetation and to limit disturbances to sensitive wildlife habitats.  

Trails in the Red Rocks area and near Centennial Trailhead and Settlers Park trailheads will have short-term closures when heavy equipment and helicopters are operating in the area to support the Anemone Hill Trail project. The current Anemone Hill Trail is expected to be open evenings and weekends. This project may require the use of helicopters for six to eight days. 

OSMP encourages visitors to view intermittent closures in the area online at or through the new Boulder Area Trails App . Visitors who enter closure areas while this project is occurring will be ticketed and may face fines up to $1,000 and/or 90 days in jail. 

Always bring a face covering when leaving your home. If you’re older than 12 years old, a county public health order requires visitors to wear a face covering anytime they cannot maintain 6 feet of physical distance on OSMP trails or at trailheads. Read county health order: .  

Please visit to see current trail closures, trails that are wider than 6 feet, open space areas of high and low use and suggested one-way travel on OSMP trails.

Published: May 11, 2020

Media Contacts:

Phillip Yates, City of Boulder Open Space and Mountain Parks, 303-349-2438
Patrick von Keyserling, Communications Director, 303-441-4959