North Cascades National Park

Fourth of July Pass

moderate_strenuous Day HikersGlacier ViewsOld-Growth Forest
10 mi Distance
2,300 ft Elevation Gain
Varies Estimated Time
roundtrip Trail Type

What to Expect

Starting from the Colonial Creek trailhead off Highway 20, you'll climb steadily through a cathedral of old-growth western red cedar and Douglas fir so thick the canopy swallows most of the daylight. The trail follows a well-maintained path along Thunder Creek before banking uphill in earnest — that 2,300-foot elevation gain hits hardest in the final push to the pass. The forest thins as you climb, giving way to subalpine meadows where views of Colonial Peak, Neve Glacier, and the jagged Picket Range unfold like a panoramic reward for your burning quads. The pass itself is a broad saddle with enough room to spread out and soak in the scenery without bumping elbows. This one is built for hikers who want genuine North Cascades backcountry atmosphere without needing a permit or overnight gear — a solid day effort with a payoff that rivals trails twice its length.
Day HikersGlacier ViewsOld-Growth ForestPhotographersSolitude Seekers

Safety Advisory

The upper mile is fully exposed with no tree cover — afternoon thunderstorms roll in fast over the Cascades in summer. If clouds are building by early afternoon, start heading down.

Black bears are active along the Thunder Creek corridor through September. Carry bear spray and know how to use it — this isn't a drill, encounters happen here every season.

Trail Details

Distance 10 miles round-trip
Elevation Gain 2,300 ft
Difficulty moderate_strenuous
Estimated Time Varies
Trail Type roundtrip
Pets Not allowed
Season Year-round
Trailhead Fourth of July Pass

Pro Tips

Trail Tip

Start by 7:30 AM to claim parking at the Colonial Creek trailhead — it shares the lot with the popular Thunder Creek Trail and fills fast on summer weekends.

Trail Tip

Snow lingers on the upper stretches well into July most years. Bring microspikes if you're hiking before mid-July, and check the Marblemount Ranger Station's trail conditions report the day before.

Trail Tip

The best photo op is about a quarter-mile before the pass where the trail breaks out of the trees — you get Neve Glacier framed by subalpine firs with no scrambling required. Afternoon light hits the glacier face perfectly.

Photos

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