Alice Creek Campground

The Snoqualmie Tunnel – Snoqualmie Pass loop from Change Peak offers a memorable touring bicycle journey through the stunning Cascade Mountains. You'll traverse the historic Palouse to Cascades State Park Trail, encountering diverse scenery from dense forests and alpine lakes to majestic mountain views. The undeniable highlight is cycling through the 2.3-mile (3.7-kilometer) Snoqualmie Tunnel, a dark and chilly underground passage that's a truly unique experience.

This difficult 36.4-mile (58.6 km) route involves 2560 feet (780 metres) of elevation gain and takes about 5 hours and 1 minutes, demanding very good fitness. The trail is mostly gravel, so a bike capable of handling varied surfaces is recommended. The Snoqualmie Tunnel is typically open from May to October; you'll need a headlamp, taillight, and a jacket for the cold, dark interior.

This loop follows a former railroad line, which means gentle grades for much of the way, though the overall length and climb contribute to its challenging rating. The historic rail trail features old trestle bridges and offers a glimpse into the region's past. While this loop is demanding, other options exist in the Snoqualmie Pass area for shorter, easier rides if you want to experience the tunnel without the full challenge.

The Snoqualmie Tunnel loop cycling routes from Olallie State Park offer a truly distinctive ride, blending the thrill of navigating a historic railway tunnel with the beauty of the Pacific Northwest. You'll pedal through dense old-growth forests, catch glimpses of the South Fork Snoqualmie River, and experience the cool, dark embrace of the Snoqualmie Tunnel itself. This difficult 28.5-mile (45.8 km) route, with its 1614 feet (492 metres) of elevation gain, is a demanding but rewarding journey that takes about 4 hours and 28 minutes.

Starting from the Olallie State Park Far Side Trailhead, this loop requires careful planning. The Snoqualmie Tunnel is only open from May to October, and you'll need powerful lights and warm clothing to tackle its two-mile length. Given the Olallie State Park Far Side Trailhead terrain, which includes both paved and potentially unpaved sections, this ride is best suited for cyclists with very good fitness and a sense of adventure.

This route utilizes sections of the Palouse to Cascades State Park Trail, formerly the John Wayne Pioneer Trail, offering a glimpse into the region's railway history. The experience of cycling through a mountain, combined with the varied ecosystems and views of the Cascade Mountains, makes this a memorable outing. It's a fantastic option for the best time to cycle Snoqualmie Tunnel if you're seeking a challenging ride with a unique historical landmark.