5.0
(8)
163
riders
12
rides
Gravel biking in Olallie State Park offers access to an extensive network of no traffic gravel bike trails. The park spans over 2,300 acres along the South Fork Snoqualmie River, characterized by lush old-growth forests, dramatic waterfall corridors, and sweeping mountain views of the Cascade Mountains. Its diverse terrain includes former railroad beds, river valleys, and multi-use trails, providing varied surfaces for gravel cyclists.
Last updated: July 10, 2026
6
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
24
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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4.0
(2)
49
riders
54.2km
03:13
620m
620m
Hard gravel ride. Very 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)
23
riders
43.4km
02:18
260m
270m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Olallie State Park
The Historic Snoqualmie Depot, part of the National Register of Historic Places, is Washington's longest operating train depot. The museum features railroad history exhibits and a lovely bookstore and gift shop. It is free to visit and open 7 days a week (closed Thanksgiving, Christmas Day, and New Year's Day).
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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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The Historic Snoqualmie Depot, part of the National Register of Historic Places, is Washington's longest operating train depot. The museum features railroad history exhibits and a lovely bookstore and gift shop. It is free to visit and open 7 days a week (closed Thanksgiving, Christmas Day, and New Year's Day).
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Olallie State Park offers a good selection of traffic-free gravel bike trails, with 14 routes detailed in this guide. These range from easy to difficult, ensuring options for various skill levels.
The trails in Olallie State Park cater to a range of abilities. This guide features 2 easy routes, 7 moderate routes, and 5 difficult routes, so you can choose based on your fitness and experience. For example, the Rainbow Lake – Snoqualmie Valley Trail loop from Riverbend is an easy option, while the Snoqualmie Tunnel – Snoqualmie Tunnel loop from McClellan Butte Trailhead offers a more moderate challenge.
Yes, there are beginner-friendly options. The guide includes 2 easy routes that are suitable for families or those new to gravel biking. These routes typically feature less elevation gain and smoother terrain, allowing for a relaxed and enjoyable ride away from traffic.
Olallie State Park is rich in natural beauty. While gravel biking, you can explore areas near stunning features like the famous Twin Falls, or enjoy the serene environment around Christmas Lake. The park is also known for its old-growth forests and mountain views.
Yes, the park is famous for its 'waterfall corridor.' While some waterfalls require short hikes, the spectacular Twin Falls is a prominent feature in the park and can be accessed via trails, making it a great point of interest during your gravel biking adventure.
Absolutely. Many of the no-traffic gravel routes in Olallie State Park are designed as loops, offering varied scenery without retracing your steps. Examples include the Rattlesnake Lake – Hall Creek Trestle loop from Wilderness Rim and the Rattlesnake Lake – Rattlesnake Lake loop from Wilderness Rim.
The area is highly rated by the komoot community, with an average score of 4.87 stars. Reviewers often praise the quiet, traffic-free nature of the trails, the beautiful old-growth forests, and the stunning views of the Cascade Mountains and Snoqualmie Valley.
The best time for gravel biking in Olallie State Park is generally from spring through fall, when the weather is milder and trails are clear of snow. Summer offers lush greenery and full access, while spring and fall provide cooler temperatures and vibrant foliage. Always check local conditions before heading out.
Yes, a Discover Pass is required for vehicle access to state parks in Washington, including Olallie State Park. You can purchase one online or at various retail locations. For more details, visit the official Washington State Parks website.
Dogs are generally allowed in Washington State Parks, but they must be on a leash no longer than eight feet and under physical control at all times. Always clean up after your pet. Specific trail regulations may vary, so it's advisable to check signage at trailheads or the official park website for any restrictions.
The no-traffic gravel trails in Olallie State Park offer a mix of terrain. You can expect well-maintained gravel paths, some sections with packed dirt, and potentially some rougher, more challenging gravel surfaces, especially on routes with higher difficulty ratings. The park's extensive network, including parts of the Palouse to Cascades State Park Trail, ensures varied riding experiences through forests and along river valleys.


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