Snoqualmie Tunnel – Snoqualmie Tunnel loop from Olallie State Park Far Side Trailhead
Snoqualmie Tunnel – Snoqualmie Tunnel loop from Olallie State Park Far Side Trailhead
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riders
Snoqualmie Tunnel – Snoqualmie Tunnel loop from Olallie State Park Far Side Trailhead
04:28
45.8km
490m
Cycling
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.
Last updated: May 21, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
5.54 km
Alice Creek Campground
Highlight • Rest Area
Tip by
15.9 km
Avalanche Shed in Palouse to Cascades State Park
Highlight (Segment) • Monument
Tip by
19.3 km
Snoqualmie Tunnel west entrance
Highlight • Structure
Tip by
19.3 km
Snoqualmie Tunnel
Highlight (Segment) • Structure
Tip by
26.5 km
Snoqualmie Tunnel
Highlight • Structure
Of course no trains anymore.
Closed during the winter months.
Tip by
34.4 km
Palouse to Cascades State Park Trail Bridge
Highlight (Segment) • Bridge
Tip by
45.8 km
End point
Parking
Way Types & Surfaces
Way Types
41.7 km
4.22 km
Surfaces
45.0 km
622 m
210 m
< 100 m
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Elevation
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Weather
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Saturday 11 July
22°C
12°C
0 %
Additional weather tips
Max wind speed: 8.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Description
If you're looking for a truly unique and challenging touring cycling experience in the Pacific Northwest, the Snoqualmie Tunnel – Snoqualmie Tunnel loop from Olallie State Park Far Side Trailhead is definitely worth your time. This difficult 28.5-mile (45.8 km) route packs in 1614 feet (492 metres) of elevation gain, taking about 4 hours and 28 minutes to complete. It's a fantastic choice for experienced cyclists with very good fitness who want to combine a demanding ride with historical intrigue and stunning natural beauty, especially if you're curious about the Snoqualmie Tunnel loop cycling difficulty.
What to expect on Snoqualmie Tunnel – Snoqualmie Tunnel loop from Olallie State Park Far Side Trailhead
This loop takes you on a journey through diverse landscapes, starting with lush old-growth forests and offering views of the South Fork Snoqualmie River. The highlight, without a doubt, is the historic Snoqualmie Tunnel itself, a centerpiece of the John Wayne Pioneer Trail Snoqualmie Tunnel cycling experience. Riding through this over two-mile-long tunnel is an adventure; expect it to be very dark, damp, and chilly, even on a warm day. Beyond the tunnel, you'll encounter dramatic cliffs and scenic vistas of the Upper Snoqualmie Valley and the majestic Cascade Mountains. While much of the route is paved, be prepared for some unpaved sections that might require you to push your bike, adding to the challenge.
Planning your visit
The loop begins at the Olallie State Park Far Side Trailhead. The Snoqualmie Tunnel is typically open from May to October, so plan your trip accordingly. For safe passage through the tunnel, you absolutely need powerful headlamps and taillights, plus warm layers to combat the chill. As Olallie State Park is a Washington State Park, you will likely need a Discover Pass for parking. Always check the Snoqualmie Tunnel opening dates before you head out to ensure access.
Trail details
- Distance: 28.5 miles (45.8 km)
- Elevation gain: 1614 feet (492 metres)
- Difficulty: difficult
- Estimated time: 4 hours and 28 minutes
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