4.4
(73)
941
riders
73
rides
Gravel biking in King County offers diverse landscapes, from extensive rail-trail networks to challenging terrain in mountain foothills. The region features dense forests, river valleys, and numerous lakes, providing varied surfaces for gravel cyclists. Riders can explore former railway paths, forested natural areas, and routes connecting urban centers with natural preserves. This varied topography supports a wide range of gravel biking experiences.
Last updated: July 11, 2026
4.3
(3)
33
riders
57.5km
03:19
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.6
(5)
36
riders
30.6km
01:40
250m
250m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.6
(5)
36
riders
30.9km
01:39
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
36
riders
66.7km
03:55
740m
740m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(3)
66
riders
63.8km
03:59
660m
660m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
21
riders
42.2km
03:05
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(3)
31
riders
37.6km
01:53
110m
110m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
31
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
29
riders
118km
07:10
1,350m
1,350m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
17
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Alice Creek Campground is right at the trailhead for the CDT. It’s free, first-come-first-served, with basic sites, a vault toilet, and access to some great hiking or riding. Bring bear spray and be prepare for the gravel road.
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The Palouse to Cascades State Park Trail is a long gravel route across Washington, great for bikepacking or long rides. The Snoqualmie Tunnel is a must—dark, damp, and fun (bring lights). Expect wind and remote stretches, so pack water and gear. Riding over trestles and through changing landscapes keeps things interesting the whole way.
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The Hall Creek Trestle is a historic steel and timber railway bridge built in 1912. It was once the old Milwaukee Road until, in 1988, a storm washed away a central 171-foot section of the bridge. In the 1990s, Washington State Parks restored the trestle, reconnecting the east and west segments of the former rail line, which is now part of the Palouse to Cascades (Iron Horse) Trail. The views down into Hall Creek Valley are genuinely stunning and worth the ride!
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This 42-mile trail is wide and flat, offering views of the river through lush greenery throughout. It is designed to connect different cities, providing a non-motorized trail for recreation and transportation.
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The Tokul Creek Trestle was built in the early 20th century to transport lumber and goods through the area. The bridge was part of the Northern Pacific Railroad and played an important role in the economic development of the area. https://blockblastonline.com
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Great views from here. And... the middle of the trestle is different than either end because it had collapsed and was rebuilt in the late 90's
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It's much longer than that. This is my favorite long distance bike trail in Washington, almost 290 miles. You can start at Rattlesnake Lake near North Bend and ride all the way to Idaho - or vice versa. Most of the trail is still on the old railroad bed (with a few detours), so it's beautiful and remote. Make sure you check the Washington State Parks website for maps, directions, advice and to register to go on the trail. It's free but mandatory if you are going east of the Columbia River. And... it's a bucket list item.
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I love that huge rocky boulder field to the West side. Covered in green moss, especially in the Spring. You don't see it going up, but you really do see it coming down!
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King County offers a wide selection of gravel biking routes, with over 80 trails available. These routes cater to various skill levels, from easy rides to more challenging adventures.
Yes, King County has several easy gravel biking options. The Nick Loutsis Park loop from Duvall is an excellent choice, offering a relatively flat ride. The Snoqualmie Valley Trail, a multi-use soft-surface path, is also ideal for families and beginners, providing a gentle ride through scenic forests.
For experienced riders seeking a challenge, King County delivers with routes featuring significant elevation changes and varied terrain. The Rattlesnake Lake – Hall Creek Trestle loop from Tanner is a difficult 40.8-mile path that explores the area around Rattlesnake Lake with substantial climbing. The Tolt Pipeline Trail is also known for its challenging gravel sections and climbs.
Absolutely. Many gravel routes in King County are designed as loops, allowing you to start and end at the same point. Popular options include the Tokul Creek Trestle – Snoqualmie Valley Trail loop from Carnation and the Cross Kirkland Corridor – Sammamish River Trail loop from Kirkland.
King County's gravel trails are rich with natural beauty. Many routes offer stunning views of the Cascade Mountains, dense forests, and river valleys. The Snoqualmie Valley Trail culminates near the majestic Snoqualmie Falls, a major scenic highlight. Rattlesnake Lake is also a frequent starting or ending point for several scenic rides.
The most prominent waterfall accessible from a gravel route is Snoqualmie Falls, which can be reached via the Snoqualmie Valley Trail. The Snoqualmie Falls – Snoqualmie Valley Trail loop from Carnation specifically incorporates this iconic landmark into its route.
The best time for gravel biking in King County is generally from spring through fall, when the weather is milder and trails are drier. However, some routes, particularly those at lower elevations or well-maintained rail-trails, can be ridden year-round. Always check local weather and trail conditions, especially during the wetter winter months.
Given King County's varied weather, it's wise to be prepared. Layered clothing is recommended, as conditions can change quickly. Waterproof or water-resistant outer layers are essential, especially outside of peak summer. For routes like the Snoqualmie Tunnel on the Palouse to Cascades Trail, strong lights are a must due to its darkness and dampness.
While direct public transport access to all trailheads can be limited, some urban-adjacent trails like sections of the Cross Kirkland Corridor and Sammamish River Trail are more accessible via King County Metro bus routes. Planning your route with public transport in mind and checking schedules in advance is advisable.
Many popular gravel trailheads in King County offer convenient parking. For instance, areas around Rattlesnake Lake, Carnation, Duvall, and Kirkland often have designated parking facilities near trail access points. It's always a good idea to verify parking availability and regulations for your specific starting point.
The gravel biking experience in King County is highly rated by the komoot community, with an average score of 4.4 stars from over 60 reviews. Riders frequently praise the diverse landscapes, from dense forests and river valleys to former railway paths, and the variety of routes suitable for different skill levels. The region's natural beauty and well-maintained trails are often highlighted.
Yes, King County offers opportunities for bikepacking, particularly on longer routes. The Palouse to Cascades State Park Trail, which spans across Washington, has a notable section within King County, including the Snoqualmie Tunnel, making it excellent for extended rides and bikepacking adventures.
Gravel biking in King County exposes you to a rich tapestry of landscapes. You'll encounter dense, mossy forests, expansive river valleys, and numerous lakes. Many routes follow former railway lines, offering unique perspectives of the region's natural and historical features. The backdrop often includes views of the imposing Cascade Mountains.


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