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© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

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Hike

Thunder Knob Trail

Ends at Diablo Lake
Camp under a mile away

3.4 mi out & back · 697 ft gain · 1,872 ft high point · Moderate

Washington · OpenStreetMap contributors

About Elevation Highlights Map Camp near here More hikes

About this hike

Thunder Knob Trail reaches Diablo Lake in North Cascades National Park on a 3.4-mile out and back with 697 feet of climb.

Elevation

697 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

0.1 mi from the trailhead
Colonial Creek North Campground
Campground

More hikes nearby

Ranked the same way, within twenty-five miles.

15 mi from you
Sahale Arm Trail
- Ends at Sahale Glacier
- Inside North Cascades National Park
- 4,235 ft of climbing
11.7 mi out & back · 4,235 ft gain · Very hard
North Cascades National Park · Camp 4 mi away

Out: 650 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Diablo LakeDestination · 1.1 mi in
ViewpointDestination · 1.6 mi in
ViewpointDestination · 1.7 mi in
ViewpointAlong the way · 0.9 mi in
Diablo Lake OverlookNearby · 1.7 mi in

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 3.4 mi
Shape: Out & back
Gain: 697 ft round trip
High point: 1,872 ft
Low point: 1,221 ft
Difficulty: ModerateFrom 3.4 mi and 697 ft of climbing
Managed by: OpenStreetMap contributors
State: Washington
Camps within 15 mi: 14
Trailhead: 48.6910° N · 121.0996° W

Get directions Open the map

0.1 mi from the trailhead

Colonial Creek North Campground

Campground · Washington

0.2 mi from the trailhead

Colonial Creek South Campground

Campground

24 mi from you

McGregor Mountain Trail

Summits McGregor Mountain
Inside Stephen Mather Wilderness
6,035 ft of climbing

12.1 mi out & back · 6,035 ft gain · Very hard

Stephen Mather Wilderness · Camp 6 mi away

Black Peak Trail

Summits Black Peak
Inside Wenatchee National Forest
5,664 ft of climbing

11.2 mi out & back · 5,664 ft gain · Very hard

Wenatchee National Forest · Camp 12 mi away

Lookout Mountain Trail

Summits Lookout Mountain
Inside Mt. Baker National Forest
4,476 ft of climbing

9.0 mi out & back · 4,476 ft gain · Very hard

Mt. Baker National Forest · Camp 1 mi away

South Fork Cascade River Trail

Ends at South Cascade Glacier
Inside Mt. Baker National Forest
7,596 ft of climbing

19.3 mi out & back · 7,596 ft gain · Very hard

Mt. Baker National Forest · Camp under a mile away

West Fork Pasayten Trail

Summits Slate Peak
Inside Pasayten Wilderness
3,545 ft of climbing

14.6 mi one way · 3,545 ft gain · Very hard

Pasayten Wilderness

More like this

Hikes that read like this one, wherever they are.

Thunder Creek Trail
- Ends at Diablo Lake
- 7,615 ft of climbing
- Camp under a mile away
18.5 mi one way · 7,615 ft gain · Very hard
Washington · Camp under a mile away
Fourth of July Trail
- Passes Diablo Lake
- 2,679 ft of climbing
- Camp under a mile away
7.8 mi out & back · 2,679 ft gain · Hard
Washington · Camp under a mile away
Thunder-Park-Bridge Cross-Park Trek
- Near Rainy Lake
- Inside North Cascades National Park
- 4,391 ft of climbing
16.1 mi one way · 4,391 ft gain · Very hard
North Cascades National Park · Camp 11 mi away
Pyramid Lake Trail
- Near Gorge Lake
- 1,535 ft of climbing
- Camp under a mile away
3.7 mi out & back · 1,535 ft gain · Moderate
Washington · Camp under a mile away

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Thu47°38°Slight Chance Light Rain
Fri47°44°Rain And Snow
Sat53°41°Chance Light Rain
Sun45°35°Rain And Snow
Mon48°40°Chance Light Rain
Tue48°43°Light Rain
Wed52°Light Rain Likely

Thu: Slight Chance Light Rain then Partly Sunny · wind 2 to 7 mph WNW

National Weather Service · refreshed hourly