Tolt Pipeline and Blyth Park Loop

Parking is generally available at Blyth Park in Bothell, which serves as a common access point for this loop. The trail also connects to other areas, so alternative parking might be found depending on your starting point.

Yes, this multi-use trail is generally dog-friendly. However, always ensure your dog is on a leash and that you clean up after them to respect other trail users and wildlife.

The trail can be enjoyed year-round. Spring and summer offer views of wildflowers and berries, but be prepared for exposed sections that require water and sunscreen on sunny days. Fall brings beautiful foliage, and winter can offer a different, quieter experience, though conditions may vary.

No, there are typically no permits or entrance fees required to access the Tolt Pipeline Trail or Blyth Park itself. It's a public park and trail system.

The route offers varied terrain, including gravel surfaces and numerous hills, leading to significant elevation changes. While some sections are flat, others feature brief but steep inclines, such as the challenging 'Mailbox-esque' Hollywood Hill. It's considered moderately challenging, providing a good workout with both shaded forest and open, exposed areas.

Hikers can expect a blend of natural and urban views. The trail follows a 100-foot-wide right-of-way for Seattle's Tolt Water Pipeline. You'll see wildflowers and berries, and common wildlife sightings include deer and rabbits. From higher points, territorial views of distant Seattle and the Cascades are possible. A notable feature is the Blyth Park Tunnel Underpass.

Yes, the route incorporates sections of the Tolt Pipeline Trail and also passes through segments of the Burke-Gilman Trail and Ninth Green at Nine.

The Komoot tour data suggests this specific loop takes approximately 2 hours and 49 minutes to complete. However, your actual duration may vary based on your pace and how often you stop to enjoy the scenery.

While the overall difficulty is rated as 'easy' in the Komoot tour data, the trail does feature significant elevation changes and some steep sections. Beginners and families should be prepared for a moderate workout. Consider the shorter, flatter sections for an easier experience.

Common wildlife sightings include deer and rabbits. Occasionally, bobcats and coyotes have been reported in the area. Birdwatching is also a popular activity along the route.

Given the varied terrain and potential exposure, it's advisable to bring plenty of water, especially on sunny days. Sunscreen, appropriate footwear for gravel and inclines, and layers of clothing are also recommended. Binoculars can enhance wildlife and distant views.