Thornton Lake Camping Area

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Last Updated: December 4, 2025

Located in the North Cascades National Park in Washington, Thornton Lake Camping Area is a stunning destination for nature lovers.


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Summary

The campground offers breathtaking views of the surrounding mountains and the turquoise waters of Thornton Lake. The area is also home to numerous hiking trails, including the popular Thornton Lakes Trail, which takes visitors on a 6.2-mile round trip hike to the lake.

The campground provides basic amenities such as restrooms, picnic tables, and fire pits. However, there is no potable water available on-site and campers must bring their own. The campground operates on a first-come, first-served basis and has ten campsites available for tent camping.

An interesting fact about the Thornton Lake Camping Area is that the lake is actually man-made, created in the 1960s as part of a hydroelectric project. However, the area now serves as a popular recreational destination for hikers and campers.

The best time to visit Thornton Lake Camping Area is between June and September, when temperatures range from 50-70 degrees Fahrenheit. Visitors should note that the campground is only accessible via a steep 2.5-mile gravel road, which may be difficult for some vehicles to navigate. However, those who make the journey will be rewarded with stunning views and a peaceful retreat in the heart of the mountains.

       

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Camping Essential Practices

Pack It In, Pack It Out
Take all trash, food scraps, and gear back with you to keep campsites clean and protect wildlife.
Respect Wildlife
Observe animals from a distance, store food securely, and never feed wildlife to maintain natural behavior and safety.
Know Before You Go
Check weather, fire restrictions, trail conditions, and permit requirements to ensure a safe and well-planned trip.
Minimize Campfire Impact
Use established fire rings, keep fires small, fully extinguish them, or opt for a camp stove when fires are restricted.
Leave What You Find
Preserve natural and cultural features by avoiding removal of plants, rocks, artifacts, or other elements of the environment.

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