55
riders
8
rides
No traffic gravel bike trails in Thurston County traverse a diverse landscape characterized by saltwater shorelines, extensive forests like Capitol State Forest, and fertile agricultural lands. The region features varied terrain, from the unique Mima Mounds Natural Area Preserve to wetlands and river valleys. Gravel biking here offers routes with significant elevation changes and flatter sections through wooded areas and open countryside.
Last updated: April 25, 2026
12
riders
62.4km
04:20
1,230m
1,230m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
riders
18.7km
01:18
350m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
riders
35.0km
03:17
540m
540m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
81.7km
05:44
1,730m
1,730m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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This trailhead is open to motorized off-road vehicles. Expect to share the trails with ORVs.
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Capitol State Forest, spanning 110,000 acres, boasts the intriguing Mima Mounds. As a multi-use haven, it accommodates off-road motorcycles, mountain biking, horseback riding, and hiking, fostering successful coexistence among diverse recreational groups.
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This stretch of rail offers several viewpoints to see spawning salmon in the fall. As Totten Inlet's largest tributary, Kennedy Creek is an important salmon habitat.
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Margaret McKenny Campground has 24 first-come, first-served campsites with horse corrals for equestrian guests. The trailhead provides access to a network of non-motorized through the southeastern quarter of the forest. A Discover Pass is required to park anywhere in the Capitol State Forest.
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No one knows exactly what created the distinct geological formations beneath this prairie, but many hypotheses have been made. In any case, all agree that this is a special place, and it was designated as a National Natural Landmark in 1966. A Discover Pass is required to park at the trailhead. Only service dogs are allowed here.
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Get a better look at the strange mounds from a raised viewing platform. Interpretive signs at the viewing platform describe the unknown origins of this geological phenomenon.
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The road that circles Summit Lake provides breathtaking views all the way around.
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The 640-acre Mima Mounds Natural Area Preserve contains around 370 acres of mounded prairie. The area's marine-influenced climate is mild, with warm, dry summers and cool, but mostly snow-free winters at 200 feet above sea level. Mima Mounds Preserve's grassland is native glacial outwash prairie.
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Thurston County offers a good selection of routes for gravel biking away from traffic. This guide features 8 distinct no-traffic gravel bike trails, ranging from moderate to difficult, ensuring options for various skill levels.
The best time for gravel biking in Thurston County is generally from late spring through early fall (May to October). During these months, you'll experience milder temperatures and less rainfall, making for more enjoyable rides. While some trails are accessible year-round, winter can bring wet and muddy conditions, especially in forested areas like Capitol State Forest.
While many of the featured routes lean towards moderate to difficult, the region does offer sections of multi-use trails like the Chehalis Western Trail and Yelm-Tenino Trail that are relatively flat and can be suitable for beginners looking for less technical gravel sections. For a dedicated route in this guide, the Kennedy Creek Salmon Trail loop from Kennedy Creek Natural Area Preserve is rated as moderate and offers a shorter, less strenuous option.
You can expect a diverse range of terrain on Thurston County's no-traffic gravel trails. Many routes, especially within the Capitol State Forest, feature forest roads with significant elevation changes, offering views of lush trees, prairies, and rivers. Other trails, like sections of the Chehalis Western Trail, are converted railroad grades, providing smoother, flatter paths through wetlands and farmland. The E-Line Road loop from Mima Mounds Natural Area Preserve, for example, explores varied and challenging terrain.
Absolutely. Thurston County is known for its 'Super Gravel' routes, particularly within the Capitol State Forest. The E-Line Road loop from Mima Mounds Natural Area Preserve is a difficult 62 km route with over 1200 meters of elevation gain, providing a substantial challenge. Another demanding option is the Summit Lake waterfront – S Line loop from McCleary, which covers 35 km with over 540 meters of climbing.
Many no-traffic gravel trails in Thurston County offer access to beautiful natural attractions. You can explore the unique geological formations of the Mima Mounds Natural Area Preserve, known for its mysterious mounds. The Chehalis Western Trail winds through wetlands and forests, while the Yelm Tenino Trail offers scenic views of the countryside. The Kennedy Creek Salmon Trail loop provides an opportunity to see the Kennedy Creek Natural Area Preserve.
Yes, several routes in this guide are designed as loops to maximize scenic views while minimizing traffic. The E-Line Road loop from Mima Mounds Natural Area Preserve and the E-Line Road – Mima Falls Trailhead loop both offer extensive loops through the Capitol State Forest. Another option is the Margaret McKenny Campground – Middle Waddell Campground loop from Mount Molly, which provides a substantial loop through forested areas.
While many of the routes in this guide are rated difficult, some sections of the broader trail network in Thurston County are family-friendly. For instance, the Chehalis Western Trail and Yelm-Tenino Trail, though not exclusively gravel, offer paved and crushed rock sections that are generally flat and safe for families. When choosing a route from this guide, consider the shorter, moderate options and always check the elevation and distance to ensure it matches your family's capabilities.
Many trails in Thurston County, especially those in state forests and parks, are dog-friendly, provided your dog is on a leash. Always check specific trail regulations before heading out, as rules can vary. For example, trails within the Capitol State Forest generally welcome leashed dogs. Ensure your dog is comfortable with the distance and terrain, especially on longer or more challenging routes.
Parking is available at various trailheads and access points throughout Thurston County. For routes within the Capitol State Forest, you can often find parking near popular starting points like the Mima Falls Trailhead or the Mima Mounds Natural Area Preserve. For multi-use trails like the Chehalis Western Trail, there are numerous designated parking areas along its length. Always check the specific tour details on komoot for recommended parking locations.
Yes, some trail systems and parks in Thurston County provide amenities. For instance, Tumwater Falls Park, while not a gravel biking trail itself, is a popular spot with restrooms and picnic areas near the urban trail network. Along the Chehalis Western Trail, you'll find various amenities in the towns it passes through. For routes deep within Capitol State Forest, amenities are more limited, so it's best to be self-sufficient. The Norm Dicks Visitor Center is another facility that can be a starting point for some adventures.
Gravel bikers frequently praise Thurston County for its extensive network of quiet forest roads and multi-use trails that offer a true escape from traffic. The diverse landscapes, from the unique Mima Mounds to the dense Capitol State Forest, provide constantly changing scenery. Riders often highlight the challenging climbs and rewarding descents, as well as the sense of solitude found on many of the routes.


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