Tolt Pipeline Trail

The Tolt Pipeline Trail runs almost 14 miles between Bothell and Duvall alongside the City of Seattle’s Tolt Pipeline. The trail is provided through an agreement between King County and the City of Seattle and makes use of the pipeline’s wide right-of-way and soft-surface access road. The Tolt Pipeline Trail is popular with off-road bicyclists, equestrians, and hikers who like the trail’s straight, east-west alignment, varied terrain, and rustic ambiance. Starting near the Sammamish River Trail and Blyth Park in Bothell, the trail traverses King County’s eastside cities and suburban neighborhoods, rural towns, and natural areas. Along the way, the route crosses Norway Hill, Woodinville’s wineries and breweries, equestrian estates in Hollywood Hills, Avondale, Bear Creek, Trilogy, and the Snohomish River before reaching Big Rock Road near Duvall. The trail has some steep grades and on-road detours. The trail offers many territorial views from distant Seattle to the forested Cascades. Access is available at numerous locations along the trail including Norway Hill above Blyth Park, East Norway Hill Park, 168th Avenue NE, Bear Creek Road NE, 232nd Avenue NE, and Big Rock Road.