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Hikes/United States/Washington State/North Cascades National Park
Difficulty
This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
Moderate
Elevation
This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
203 m
Distance
This reflects the return distance of this route as measured by the GPS file.
5.3 km
Duration
This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
1.5-2h
User Ratings
These ratings are completed by users who have completed this trail and not subject to reviews by 10Adventures.
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Thunder Knob Trail

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Table of contents

The Thunder Knob Trail is a pleasant moderate hike, switchbacking gently to a knob above Diablo Lake with views of nearby mountains. It’s just over 3.1mi in length with around 656ft of elevation gain, making it suitable for families and beginners. The trail is very well maintained and easy to follow. Dogs are allowed on this trail but must be kept on leash.

Route Description for Thunder Knob Trail

Thunder Knob Trail is a moderate hike with a calm atmosphere, making it a great choice for family outings or relaxed short trips. The trail is very well-kept and easy to follow, and you can continue to enjoy the lakeshore once you’re done hiking.

Begin from the trailhead, hiking northwest across the stream to the foot of the knob. The trail gently switchbacks to help you up the elevation gain, which isn’t overwhelming at any point. You’ll get a beautiful view about halfway up, where the trail evens out a bit. Enjoy the view at the top of the knob, then retrace your steps back to the trailhead.

Getting to the Thunder Knob Trail Trailhead

The trailhead for Thunder Knob Trail is off North Cascades Highway near the Colonial Creek Campground.

Route Information

  • Backcountry Campground:

    Colonial Creek

  • When to do:

    March-September

  • Pets allowed:

    Yes - On Leash

  • Family friendly:

    Yes

  • Route Signage:

    Average

  • Crowd Levels:

    High

  • Route Type:

    Out and back

Thunder Knob Trail Elevation Graph

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