4
hikers
02:59
8.23km
720m
Hiking
Hike the moderate Fourth of July Pass via Thunder Creek Trail, covering 5.1 miles with 2350 feet of elevation gain in North Cascades Nationa
Last updated: February 26, 2026
Tips
Your route passes through protected areas
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Waypoints
Start point
Parking
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2.85 km
Highlight • Other
Tip by
2.86 km
Highlight • Bridge
4.08 km
Highlight • Trail
Tip by
7.01 km
Highlight • Mountain Hut
8.23 km
End point
Way Types & Surfaces
Way Types
7.49 km
744 m
Surfaces
7.42 km
737 m
< 100 m
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Elevation
Highest point (1,070 m)
Lowest point (370 m)
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Thursday 21 May
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This route was planned by komoot.
The trail is generally enjoyable from July through October. It's one of the earlier passes in the North Cascades to melt out, making it a good option for early season hiking. The ample tree coverage also makes it a pleasant choice on hotter days.
The initial two miles along Thunder Creek are relatively flat and easy, winding through lush old-growth forests. After this, the path turns onto the Fourth of July Trail, where the ascent becomes significantly steeper, rocky, and rooty as you gain elevation towards the pass.
No, dogs are generally not permitted on trails within North Cascades National Park, including this one, to protect wildlife and natural resources. Always check current park regulations before heading out.
North Cascades National Park does not have an entrance fee. However, if you plan to camp overnight in the backcountry, you will need a backcountry permit. Day hikers typically do not require a permit, but it's always wise to check the official NPS website for the latest regulations.
Parking for the Thunder Creek Trailhead is typically available near the Colonial Creek Campground area. It's advisable to arrive early, especially on weekends, as parking can fill up quickly.
You'll experience beautiful old-growth forests and views of the aquamarine Thunder Creek. As you climb, you might catch glimpses of surrounding peaks like Colonial Peak and Snowfield Peak. Highlights along the way include a Bridge and a Bridge over the river. The Fourth of July Camp also offers some views.
The Fourth of July Pass via Thunder Creek Trail is considered moderate to strenuous due to its significant elevation gain and rocky, rooty sections after the initial flat miles. While the first two miles are easy, the full ascent to the pass might be challenging for beginners or very young children. It's best suited for hikers with some experience and good fitness.
Yes, the route utilizes sections of several other trails. You'll be on the Thunder Creek Trail and the Fourth of July Trail. It also overlaps with parts of the Panther Creek Trail and The Great North Cascades Traverse.
Yes, backcountry camping is available at designated sites like Fourth of July Camp, Thunder Camp, and Neve Camp. However, campfires are not permitted at Fourth of July Camp. You'll need a backcountry permit for overnight stays.
This trail is known for its passage through exceptional old-growth forests that predate the founding of the United States. It also offers a sense of solitude, being less trafficked than some other trails in the North Cascades, making it ideal for a quiet backcountry experience.
You'll be hiking alongside Thunder Creek for the initial section, which is a glacial creek. While there are water sources, it's always recommended to carry sufficient water or a reliable water filter/purifier, as direct access or potability can vary.