5.0
(4)
131
riders
16
rides
Gravel biking in Olallie State Park offers access to a network of multi-use trails set within old-growth forests and along the South Fork Snoqualmie River. The terrain includes sections of the Palouse to Cascades State Park Trail, providing varied surfaces suitable for gravel bikes. Riders can expect moderate elevation changes and scenic views of the Cascade Mountains and dramatic waterfalls. The park's landscape is characterized by dense woodlands and river valleys, with routes connecting to areas like Rattlesnake Lake.
Last updated: May 31, 2026
6
riders
29.8km
01:52
430m
430m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
17
riders
21.6km
01:11
170m
170m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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9
riders
23.1km
01:21
230m
230m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
17
riders
40.0km
02:25
380m
380m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
26
riders
48.8km
02:38
320m
330m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Enjoy the views of Meadowbrook Slough, actually an oxbow lake surrounded by wetlands.
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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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The South Fork Snoqualmie River begins near Snoqualmie Pass and flows for over 30 miles before merging with the main Snoqualmie River in North Bend.
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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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Olallie State Park offers a diverse selection of nearly 20 gravel bike trails. These routes range from easy to difficult, providing options for various skill levels. The komoot community has explored these trails over 200 times, highlighting their popularity.
Yes, Olallie State Park has easy gravel bike trails perfect for beginners or families. One excellent option is the Rainbow Lake – Snoqualmie Valley Trail loop from Riverbend. This route is 15.6 km long and typically takes just over an hour to complete, offering a gentle introduction to gravel biking in the park.
The gravel bike trails in Olallie State Park feature varied terrain, including sections of the Palouse to Cascades State Park Trail and the Snoqualmie Valley Trail. You'll ride through lush old-growth forests, along the South Fork Snoqualmie River, and experience moderate elevation changes. Surfaces can range from well-packed gravel to some rougher sections, making a gravel bike with 32mm or wider knobby tires ideal.
Yes, many of the gravel routes in Olallie State Park are designed as loops. For example, the popular Rattlesnake Lake – Rattlesnake Lake loop from Wilderness Rim is a 21.4 km trail that circles around Rattlesnake Lake, offering scenic views and a convenient return to your starting point.
Olallie State Park is renowned for its natural beauty. Along the gravel routes, you can enjoy scenic views of the Cascade Mountains and the Upper Snoqualmie Valley. The park is also home to spectacular waterfalls, including the impressive Twin Falls, which plunges 135 feet. Other notable features include Cedar Butte peak and Christmas Lake, which can be explored via nearby trails.
The komoot community highly rates the gravel biking experience in Olallie State Park, with an average score of 4.9 stars. Reviewers often praise the serene old-growth forests, the dramatic waterfalls, and the well-maintained multi-use trails that offer a mix of challenge and scenic beauty. The connectivity to larger trail systems like the Palouse to Cascades State Park Trail is also a highlight.
For experienced riders seeking a longer challenge, the Snoqualmie Tunnel – Snoqualmie Tunnel loop from McClellan Butte Trailhead is a moderate 39.95 km route. This trail offers a substantial ride with varied terrain and elevation, providing a rewarding experience for those looking to push their limits.
While gravel biking is enjoyable year-round, the spring, summer, and fall months generally offer the most pleasant conditions in Olallie State Park. Spring brings lush greenery and flowing waterfalls, summer provides warm, dry weather, and fall showcases vibrant foliage. Always check local weather forecasts and trail conditions before heading out, especially during the wetter winter months.
Olallie State Park offers several parking areas, including the Homestead Valley Trailhead, which provides access to the Palouse to Cascades State Park Trail. Many routes, such as the Rattlesnake Lake – Hall Creek Trestle loop from Wilderness Rim, start from areas with designated parking. It's advisable to arrive early on weekends, as parking lots can fill up quickly.
A Discover Pass is required for vehicle access to Washington State Parks, including Olallie State Park. This pass supports the maintenance of state recreation lands. You can purchase a day-use pass or an annual pass online or at various vendors. For more detailed information on passes, please visit the official Washington State Parks website: parks.wa.gov.
Given the varied terrain and potential for changing weather in the Cascade foothills, it's best to dress in layers. Moisture-wicking base layers, a comfortable cycling jersey, and a wind/rain jacket are recommended. Padded shorts will enhance comfort on longer rides. Always wear a helmet, and consider gloves and appropriate eyewear for protection.
Yes, several gravel routes in Olallie State Park connect to the broader Snoqualmie Valley Trail system. A great example is the Rattlesnake Lake – Snoqualmie Valley Trail loop from Wilderness Rim, which incorporates sections of this scenic multi-use trail, offering a mix of surfaces and beautiful forest scenery.


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