3.3
(15)
88
riders
02:59
21.1km
940m
Gravel riding
This difficult 13.1-mile gravel biking loop in Mount Baker-Snoqualmie National Forest offers challenging climbs and stunning views of Mount
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
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1.63 km
Highlight (Segment) • Trail
Tip by
10.5 km
Highlight • Viewpoint
Tip by
21.1 km
End point
Parking
Way Types & Surfaces
Way Types
21.1 km
Surfaces
21.1 km
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Elevation
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Today
Monday 18 May
15°C
3°C
12 %
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Max wind speed: 13.0 km/h
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This route was planned by komoot.
It's often recommended to start from the northern Skookum Flats trailhead. Specific parking information for the Mount Baker-Snoqualmie National Forest can usually be found on the official forest service website or local visitor centers.
While dogs are generally allowed on trails within the Mount Baker-Snoqualmie National Forest, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out all waste.
The best time to ride this loop is typically during the warmer months, from late spring through early fall. This period offers the clearest views, especially from the Suntop Lookout, and avoids snow or icy conditions that can make the higher elevations impassable. Summer also brings wildflowers to the lookout knoll.
The Suntop and Skookum Flats Loop is located within the Mount Baker-Snoqualmie National Forest. While there might not be a specific permit for the trail itself, a Northwest Forest Pass or America the Beautiful Pass may be required for parking at some trailheads within the National Forest. It's always best to check the latest regulations on the official Forest Service website before your visit.
Many riders recommend starting from the northern Skookum Flats trailhead and tackling the uphill gravel road section of Forest Road 7315 first. This allows you to get the significant climbing out of the way early and enjoy the more technical and scenic descents later in the ride.
This loop is considered a difficult gravel biking experience, primarily due to over 3,000 feet of vertical climbing over approximately 22 miles. The ascent on Forest Road 7315 is particularly steep and demanding, rated as 'Black Diamond' for climbing. The Skookum Flats section is rated 'Intermediate' and offers a more technical but manageable ride.
The terrain is diverse. You'll encounter primarily dirt and gravel roads on the climb up Forest Road 7315, with some sections being smooth and compacted, while others are steep and challenging. The Suntop Multi Trail offers a mix of fairly groomed singletrack and open, fast sections. The Skookum Flats Trail features rocky stretches, minor ups and downs, and can be bumpy, though recent maintenance has smoothed some areas. Expect some brushy sections and occasional downed trees, especially in the southernmost parts.
The loop offers breathtaking scenery. Key highlights include the panoramic views from the Suntop Lookout, which provides spectacular vistas of Mount Rainier and the surrounding Pacific Northwest landscape. Along the Skookum Flats Trail, you'll enjoy a lovely riverside ramble with beautiful views of the White River winding through a gorgeous forest. Points of interest like Doe Falls and Skookum Falls (more impressive in wetter months) can also be found.
Yes, parts of the Suntop trail are multi-use. Bikers should be prepared to share the path with hikers and equestrians, especially on certain sections. Always practice trail etiquette and yield to others.
Yes, the route also passes through sections of the Suntop Trail, Skookum Flats Trail, FS Road 220, and the Dalles River Trail.