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Thornton Lakes

Itinerary

Trailhead directions
Thornton Lakes Trailhead
4.5 mi • 2,500 ft gain
Thornton Lake Camp
4.5 mi • 400 ft gain
Thornton Lakes Trailhead

Reservations

This trip requires a North Cascades National Park Backcountry Permit.

Today – May 18
Reservations required (unlimited quota)
May 19 – Oct 7
Reservations required (limited quota)

How to fill out the application

Starting Area
Short Trails
Campsite
Thornton Lake Camp

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January 2023
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