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Whatcom County

Fourth of July Pass via Thunder Creek Trail

Routes
Hiking trails & Routes
Whatcom County

Fourth of July Pass via Thunder Creek Trail

Moderate

4

hikers

Fourth of July Pass via Thunder Creek Trail

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

Please check local regulations for:

Waypoints

A

Start point

Parking

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1

2.85 km

Bridge

Highlight • Other

The bridge moves a little when you are walking on it but it's completely safe.

Tip by

2

2.86 km

Bridge over the river

Highlight • Bridge

3

4.08 km

Fourth of July Trail

Highlight • Trail

The Fourth of July Trail is a popular trail especially early in the season since the pass is one of the first to be free of snow. There are some official camps along the trail and beautiful streams.

Tip by

4

7.01 km

Fourth of July Camp

Highlight • Mountain Hut

B

8.23 km

End point

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Way Types & Surfaces

Way Types

7.49 km

744 m

Surfaces

7.42 km

737 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,070 m)

Lowest point (370 m)

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Weather

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Thursday 21 May

21°C

7°C

-- %

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This route was planned by komoot.

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Frequently Asked Questions

What is the best time of year to hike Fourth of July Pass via Thunder Creek Trail?

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.

What is the terrain like on this hike?

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.

Are dogs allowed on the Fourth of July Pass via Thunder Creek Trail?

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.

Do I need a permit or pay an entrance fee for North Cascades National Park?

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.

Where can I park to access the Thunder Creek Trailhead?

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.

What notable features or viewpoints can I expect along the route?

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.

Is this trail suitable for beginners or families with young children?

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.

Does this route intersect with other trails?

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.

Are there camping opportunities along the trail?

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.

What makes this trail unique compared to others in the area?

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.

What is the water source like along the trail?

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.

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