Fourth of July Pass Trail

Overview

Fourth of July Pass is a classic North Cascades forest climb with a twist: the pass itself is indistinct and viewless, but the overlooks right before it—especially near Fourth of July Camp—deliver the goods. Most hikers tackle it as a day hike from the Thunder Creek side for about 9.7 miles total and roughly 2,400–2,500 feet of gain. A through-hike shuttle between Thunder Creek (Colonial Creek Campground) and Panther Creek creates an ~11.7‑mile traverse that shows off two very different approaches.

Route Options

• Thunder Creek (best day-hike experience): From Colonial Creek Campground, follow mellow miles along turquoise Thunder Creek before the trail hooks left and climbs hard—about 2,000 feet in 2.5 miles—via tight, sustained switchbacks to Fourth of July Camp (great overlook). From there, it’s less than a mile to the broad, forested, unsigned pass. If you’re day hiking for views, turn around at the camp overlook or the small Panther Potholes viewpoint just shy of the pass.
• Panther Creek (wilder, brushier): From the east side along SR 20, this route climbs steeply, drops to the creek, then climbs again—expect a bit of elevation whiplash. It’s scenic in a quieter, woodsy way, but avalanche chutes can be brushy and stinging nettles are common. Best views are still near Fourth of July Camp on the far side of the pass.

Distance, Difficulty, and Timing

• Thunder Creek out-and-back: about 9.7 miles total; plan on 5–6 hours for most hikers. The climb is steady and strenuous but on a well-maintained trail.
• Traverse: roughly 11.7 miles total with a shuttle between Colonial Creek Campground (around mile 130) and the East Bank/Panther Creek area (around mile 139). Use caution on any required road walk along SR 20.

Water, Camping, and Permits

Small seasonal streams cross the Thunder Creek switchbacks—bring a filter. For overnights, you’ll need a backcountry permit from the park. Designated sites include cliffy, view-forward Fourth of July Camp (no campfires; bring a stove) and creekside Panther Camp. Limited quotas mean permits can be competitive in peak season.

Pets

Leashed pets are allowed on this route to (and at) the pass—rules change beyond certain boundaries, so turn around near the pass if you’ve brought a dog and always verify current regulations.

Best Time to Hike

This is an early-season friendly objective that often melts out sooner than higher alpine passes. Spring through fall works well; start early on warm days for cooler temps on the steep west-side climb. Weekdays are quieter; the Thunder Creek flats can attract casual strollers, but traffic thins as the grade steepens. Morning light can be lovely at the overlooks near Fourth of July Camp.

What You’ll See (and Why It Looks That Way)

Expect big old-growth forest, vibrant creeks, and occasional high-country glimpses toward Colonial and Snowfield near the camp. The broader North Cascades story is written in stacked, accreted terranes, later draped by volcanism and then carved by ice—glaciers bulldozed U-shaped valleys and left today’s dramatic relief. Down in these woods, you feel the erosional work more than you see it: deep-cut drainages, steep valley walls, and a pass that’s more a gentle saddle than a summit moment.

Tips and Gotchas

• Poles help on the long switchbacks. Long pants are smart on the Panther side (brush and nettles).
• Streams may be seasonal—carry enough water and a filter.
• Bugs (including yellowjackets) can be feisty in summer; pack a headnet/repellent.
• If you only have time for one viewpoint, make it Fourth of July Camp and skip the viewless pass.
• For a bigger day and varied scenery, arrange a shuttle and do the traverse.