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United States
Washington

King County

The best MTB trails in King County

4.8

(209)

2,677

riders

104

rides

Mountain biking in King County offers a diverse range of terrain, from the challenging peaks of the Issaquah Alps to rolling lowlands. The region is characterized by extensive trail networks winding through dense evergreen forests of Douglas fir and western hemlock. These varied landscapes provide a wide array of mountain biking experiences, including vigorous climbs and technical downhill sections. King County's natural areas often feature wetlands, riparian zones, and small lakes, adding to the scenic beauty of the trails.

Best…

Last updated: April 26, 2026

5.0

(1)

36

riders

#1.

Master Link and Predator Loop

9.44km

01:14

420m

420m

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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Hard

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

5.0

(4)

73

riders

24.0km

02:26

560m

560m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

5.0

(63)

28

riders

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

19

riders

32.8km

03:54

1,210m

1,210m

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

1

riders

Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

Moderate

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Popular around King County

MTB Trails in Squak Mountain State Park

MTB Trails in Raging River State Forest

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Pacific Crest Trail from Mexico to Canada – 4,200 kilometres of wilderness

Hiking Collection by

Caro "Bandit"

Tips from the Community

mtm05005
June 26, 2025, Start of Upward Mobility Trail

This is the intersection of the Upward Mobility Trail and Rattlesnake Mountain Trail. The Upward Mobility Trail is popular with mountain bikers, so make sure you keep an eye out for other trail users as you pass by.

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Tiger Mountain State Forest in Mirrormont, Washington, beckons mountain bikers with diverse trails catering to all skill levels. From smooth singletracks to technical descents, thrill-seekers will find excitement. Highlights include Predator and Off the Grid for adrenaline rushes, and challenges await on trails like Fully Rigid and Joyride. There is parking and restrooms at the trailhead here.

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From it's summit you are rewarded with breathtaking views. Whether you choose to savor a picnic lunch or simply take a moment to soak in the beauty of nature, the picnic table provides a serene and comfortable setting to enhance your experience.

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Matze
April 12, 2022, Beginner Pumptrack

Nice pump track. For beginners, but also everyone else 🤘

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Diana
March 14, 2022, Grand Ridge Trail

Grand Ridge Route is a fantastic (out-and-back) ride that connects Issaquah with Duthie Hill Park. Beginners will love it!

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This is where the Rattlesnake Mountain Trail (attention: hikers only) and the Upward Mobility Trail (for cyclists) begins. On Upward Mobility you gain over 1,000 feet in only 2.8 miles. Continue with Raging Ridge Trail if you are up for an technical 20 mile ride (aka Raging River Loop) or take Flow State Trail for a short and easy workout. No matter what you choose: You will have a blast!

1

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Diana
March 14, 2022, Olallie Trail

Great Out-and-Back trail with stunning views. Also perfect for beginners as you can turn around whenever you like.

1

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Diana
March 6, 2022, South Trail

A popular beginner trail at Soaring Eagle Park: No major climbs, no obstacles, simply pure fun!

1

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Frequently Asked Questions

How many mountain bike trails are available in King County?

King County offers a vast network of mountain bike trails, with over 120 routes documented on komoot. These trails span diverse terrain, from the challenging Issaquah Alps to rolling lowlands, providing options for all skill levels.

Are there mountain bike trails suitable for beginners in King County?

Yes, King County has a good selection of trails for beginners. Approximately 30 easy routes are available. An example is the Soaring Eagle Outer Loop, which is 5.2 miles (8.4 km) long and leads through forested parkland.

Where can I find challenging mountain bike trails in King County?

For experienced riders seeking a challenge, King County offers around 30 difficult routes. Areas like Tiger Mountain and Raging River State Forest are known for their technical sections and vigorous climbs. Consider the Master Link and Predator Loop, a 5.9-mile difficult route in the Tiger Mountain area, or the Raging River Loop, which is over 19 miles long with significant elevation gain.

What are some popular mountain biking parks or areas in King County?

King County is home to several renowned mountain biking destinations. Duthie Hill Mountain Bike Park is world-renowned for its six-mile network of singletrack trails, jumps, and drop-offs. Other popular areas include Tiger Mountain State Forest and Raging River State Forest, both offering extensive trail systems. The King County Parks website provides more details on Duthie Hill.

Are there any mountain bike trails with scenic views in King County?

Many trails in King County offer beautiful views, particularly those in the Issaquah Alps region. Routes on Tiger Mountain often provide sweeping vistas of the Pacific Northwest landscape. On clear days, some trails around Lake Sawyer even offer views of Mount Rainier.

Can I find mountain bike trails that are loop routes in King County?

Yes, many mountain bike trails in King County are designed as loops, allowing for a continuous riding experience. For example, the Northwest Timber, Legend, Joyride, East Tiger, and Master Link Loop is a challenging 9.7-mile route on Tiger Mountain.

What kind of natural features can I expect to see along the trails?

King County's trails wind through diverse natural landscapes. You'll often ride through dense evergreen forests of Douglas fir and western hemlock. Many parks and natural areas also feature wetlands, riparian zones, small lakes, and ponds. The region is known for its lush, immersive riding environments.

Are there any waterfalls near the mountain biking trails in King County?

While not directly on mountain bike trails, King County is home to impressive waterfalls that can be visited nearby. The iconic Snoqualmie Falls is a notable natural monument. Other waterfalls in the region include Franklin Falls and Coal Creek Falls.

What do other mountain bikers enjoy most about King County trails?

The mountain biking experience in King County is highly rated by the komoot community, with an average score of 4.8 stars from over 230 reviews. Riders frequently praise the extensive and well-maintained trail networks, the variety of terrain suitable for all skill levels, and the beautiful, immersive evergreen forests that provide a unique Pacific Northwest riding environment.

Are there any long-distance mountain bike routes in King County?

Yes, King County offers several longer routes for those looking for extended rides. The Grand Ridge Trail is a moderate 14.9-mile (23.9 km) path that winds through pristine forest and connects to the Duthie Hill network. Another option is the Olallie Trail, a challenging 20.4-mile route.

What is the best time of year for mountain biking in King County?

King County's extensive backcountry trail networks are generally accessible year-round for mountain biking. However, the dense evergreen forests provide good cover, and the Pacific Northwest climate means trails can be wet, especially in winter. Always check local trail conditions before heading out, as some areas may have seasonal closures or muddy sections.

Are there mountain bike trails that connect to other parks or areas?

Yes, King County's trail system is well-connected. Duthie Hill Mountain Bike Park, for instance, connects to Grand Ridge Park and Soaring Eagle Park. The Black Diamond Open Space also offers connections to Henry's Ridge and Summit Ridge, allowing for longer, interconnected rides across different natural areas.

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Check out more MTB trails throughout King County below and find the perfect route in your destination.

Fall CityLake WashingtonWoodinvilleNorth BendKentLake Marcel-StillwaterWilderness RimRaging River State ForestSnoqualmie ForestSammamishBryn Mawr-SkywayNewcastleEast Renton HighlandsMercer IslandGreen River Gorge State Park Conservation AreaSaint Edward State ParkBridle Trails State ParkShorelineSquak Mountain State ParkTiger Mountain State ForestRavensdaleMaple Heights-Lake DesireClyde HillUnion Hill-Novelty HillRiverbendRiverpointLake HolmBurienTukwilaBeaux Arts VillageMaple ValleyMedinaHunts PointKirklandBothellWhite CenterBoulevard ParkHobartLake Morton-BerrydaleLake Forest ParkSeattleKenmoreMarckworth State ForestBellevueDuvallLake Sammamish State ParkShadow LakeSnoqualmieCarnationNolte State ParkCottage LakeOlallie State ParkYarrow PointMirrormontCovingtonSeatacAmes LakeKanaskat-Palmer State ParkGrand Ridge ParkRedmondRentonAuburnIssaquahBlack DiamondFlaming Geyser State Park

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