Skip to main content
King County logo


Natural Resources and Parks
Public Affairs

Storm damage to Pinnacle Peak Park’s Cal Magnusson Trail; Visitors advised to access park’s trails via southern trailhead


A washout along Cal Magnusson Trail in Pinnacle Peak Park must be repaired before hikers can once again use the popular route – and King County Parks is advising visitors to access the park’s trail system through the Southern Trailhead.


Cal Magnusson Trail in Kingpinnaclepeak_cal_mag_trail_washout_web County's Pinnacle Peak Park sustained extensive damage from the heavy rainstorm that soaked the region on Oct. 21-22, and King County Parks has closed the trail until significant repairs can be made.

The washout eroded away the surface and base of a particularly steep and narrow portion of Cal Magnusson Trail, which is a popular route up the ancient volcanic cone that rises about 800 feet above the Enumclaw Plateau and White River.

Pinnacle Peak Park visitors should access the trail system via the Southern Trailhead off Southeast Mud Mountain Road until the trail repairs can be made. Parks employees have posted closure signage at the trail entrance, and visitors are asked to stay off Cal Magnusson Trail until repairs are completed.


Pinnacle Peak Park


Doug Williams, King County Department of Natural Resources and Parks, 206-477-4543

About King County Parks
King County Parks - Your Big Backyard - offers more than 200 parks and 28,000 acres of open space, including such regional treasures as Marymoor Park and Cougar Mountain Regional Wildland Park, 175 miles of regional trails, 215 miles of backcountry trails and a world-class aquatic center. King County Parks cultivates strong partnerships with public, private, and non-profit entities that leverage public dollars, enhance public recreation opportunities, and involve King County residents in the stewardship of King County’s open space and recreation assets.