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Snoqualmie Tunnel – Snoqualmie Tunnel loop from McClellan Butte Trailhead

Snoqualmie Tunnel – Snoqualmie Tunnel loop from McClellan Butte Trailhead

Moderate

4.8

(2655)

9,313

riders

Snoqualmie Tunnel – Snoqualmie Tunnel loop from McClellan Butte Trailhead

02:24

40.0km

380m

Gravel riding

Moderate gravel ride. 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: September 24, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Palouse to Cascades State Park

Mount Baker-Snoqualmie National Forest

Waypoints

A

Start point

Parking

1

12.4 km

Avalanche Shed in Palouse to Cascades State Park

Highlight (Segment) • Monument

This is one of several avalanche sheds that protected the railroad in the winter - and the only one still standing. Nice signboard explaining how it worked and why it …

Tip by

2

12.6 km

Avalanche Avenue

Highlight • Monument

There is an old avalanche shed here that used to protect the rail line from midwinter snow and avalanches. You can ride under or alongside it.

Tip by

3

15.8 km

Snoqualmie Tunnel west entrance

Highlight • Structure

Western end of a 2.5 mile tunnel under Snoqualmie Pass. Former railroad tunnel, now open April-September (depending on snow). Great adventure destination - you can cross the pass to the …

Tip by

4

20.0 km

Hyak Station

Highlight • Rest Area

The best place to stop for a rest and some food after climbing up the trail and going through the tunnel. There are restrooms, fresh water, a bike repair stand, …

Tip by

5

20.5 km

Snoqualmie Tunnel

Highlight • Structure

The tunnel is a part of the former railroad system that is the Palouse to Cascades State Park Trail. It is close to the former train station of Hyak. If …

Tip by

6

20.5 km

Snoqualmie Tunnel

Highlight (Segment) • Structure

One instant you're riding along a mountain trail and the next you find yourself in a completely dark tunnel (expect the tiny prick of light at the end). Soak up …

Tip by

7

24.2 km

Snoqualmie Tunnel

Highlight • Structure

Hike or cycle through the historic train tunnel.
Of course no trains anymore.
Closed during the winter months.

Tip by

8

32.1 km

Palouse to Cascades State Park Trail Bridge

Highlight (Segment) • Bridge

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 …

Tip by

B

40.0 km

End point

Parking

Way Types & Surfaces

Way Types

36.9 km

3.04 km

< 100 m

< 100 m

Surfaces

37.2 km

2.70 km

106 m

< 100 m

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Elevation

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Weather

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Tuesday 6 October

18°C

8°C

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