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Hiking
Hike the difficult 11.2-mile Thunder Creek Trail through old-growth forests, enjoying turquoise glacial waters and mountain views.
Last updated: February 26, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Salmo-Priest Wilderness
Waypoints
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8.98 km
Highlight • Viewpoint
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18.0 km
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Way Types & Surfaces
Way Types
18.0 km
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18.0 km
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Elevation
Highest point (1,720 m)
Lowest point (1,290 m)
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Friday 10 July
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This route was planned by komoot.
The first 1.5 to 2 miles of the trail are relatively flat, wide, and not too rocky, making them suitable for beginners and families looking for an easy stroll. Beyond this initial section, the trail gradually steepens and becomes more strenuous, especially if you continue towards Fourth of July Pass or Park Creek Pass.
The trail primarily winds through lush, ancient old-growth forests with towering cedar and fir trees. You'll enjoy periodic views of Thunder Creek, notable for its cloudy, turquoise color caused by glacial sediment. The initial section follows the Thunder Arm of Diablo Lake and runs alongside the creek, offering a shady path. Deeper into the wilderness, the terrain steepens, revealing views of snow-capped peaks from higher points.
A consistent highlight is the striking turquoise color of Thunder Creek itself. You'll also be immersed in impressive ancient cedar and fir trees. Around 1.5 to 2 miles from the trailhead, you'll reach a sturdy suspension bridge across Thunder Creek, which is a common turnaround point for day hikers and leads to Thunder Camp. For those continuing further, the trail offers access to higher mountain vistas.
The Thunder Creek Trail is located in North Cascades National Park near Stehekin, Washington. While specific parking details aren't provided, trailheads within national parks typically have designated parking areas. It's always advisable to check the official National Park Service website for the most current information on trailhead access and parking availability.
Yes, for overnight stays in the backcountry of North Cascades National Park, a permit is required. While day hiking typically doesn't require a permit, it's always best to check the official National Park Service website for the most up-to-date regulations regarding permits and any potential entrance fees for the park. You can find more information at nps.gov.
The trail is generally best hiked from late spring through early fall when snow has melted from higher elevations and weather conditions are more favorable. The lush forests are vibrant in spring and summer, and fall brings beautiful foliage. Always check the weather forecast and trail conditions before heading out, especially for higher sections.
Within North Cascades National Park, pets are generally not allowed on trails, including the Thunder Creek Trail, to protect wildlife and natural resources. They are typically permitted only on paved roads, in campgrounds, and in developed areas. Always verify current pet regulations on the official National Park Service website before your visit.
Hikers may spot various birds, including owls, woodpeckers, and osprey. Keep an eye out for animal tracks, such as those of deer, in sandy areas. There have even been sightings of moose in the area. Remember to observe wildlife from a distance and never feed animals.
Yes, the Thunder Creek Trail serves as a primary access point for an extensive network of trails. It covers 91% of the official Thunder Creek Trail and also passes through sections of the Shedroof Divide Trail #512 (14%) and the Jackson Creek Trail (8%). For experienced backpackers, it leads to destinations like Park Creek Pass, Fourth of July Pass, and connects with the Pacific Crest Trail.
The Thunder Creek Trail is located within North Cascades National Park. While the Salmo-Priest Wilderness is a distinct area, for this specific trail, you should refer to the regulations of North Cascades National Park. This includes potential entrance fees for the park and specific backcountry permit requirements for overnight stays. Always check the official National Park Service website for the most current information.
The first 1.5 to 2 miles to the first bridge are relatively flat and easy, making them ideal for a relaxed day hike. Beyond this point, the trail begins to steepen significantly. For example, the climb to Fourth of July Pass involves approximately 610 meters (2,000 feet) of elevation gain over 4 kilometers (2.5 miles), making it a much more strenuous endeavor suitable for experienced hikers.
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