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Routes
United States
Washington
Pierce County

Suntop and Skookum Flats Loop

Routes
United States
Washington
Pierce County

Suntop and Skookum Flats Loop

Hard

3.3

(15)

88

riders

Suntop and Skookum Flats Loop

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:

Mount Baker-Snoqualmie National Forest

Waypoints

A

Start point

Parking

Get Directions

1

1.63 km

Forest Road 7315

Highlight (Segment) • Trail

While mountain bikers can ride to Sun Top via the Sun Top Trail, if you prefer another way to challenge yourself, you can take Forest Road 7315—a gravel road with …

Tip by

2

10.5 km

Suntop Lookout

Highlight • Viewpoint

Suntop Lookout offers awesome views on Mount Rainier – Washington's highest mountain. Marvelous 360 degree panorama!

Tip by

B

21.1 km

End point

Parking

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Way Types & Surfaces

Way Types

21.1 km

Surfaces

21.1 km

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Elevation

Elevation

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Weather

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Today

Monday 18 May

15°C

3°C

12 %

Additional weather tips

Max wind speed: 13.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Suntop and Skookum Flats Loop?

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.

Is the Suntop and Skookum Flats Loop dog-friendly?

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.

What is the best time of year to gravel bike the Suntop and Skookum Flats Loop?

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.

Do I need any permits or pay entrance fees for this trail?

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.

What is the recommended direction or starting point for this loop?

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.

How challenging is the Suntop and Skookum Flats Loop?

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.

What kind of terrain can I expect on the Suntop and Skookum Flats Loop?

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.

What are the main scenic highlights along the route?

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.

Is the Suntop and Skookum Flats Loop a multi-use trail?

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.

Does the route intersect with other trails?

Yes, the route also passes through sections of the Suntop Trail, Skookum Flats Trail, FS Road 220, and the Dalles River Trail.

Nearby routes

Hard

1

Suntop and Skookum Flats Loop

02:59h

21.1km

940m

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