Thornton Lakes Road is a hiking, biking, and horse trail in Skagit County and Whatcom County, Washington. It is within Ross Lake National Recreation Area and North Cascades National Park. It is 9.5 miles long and begins at 447 feet altitude. Traveling the entire trail is 19.3 miles with a total elevation gain of 6,216 feet. The trail ends near the Thornton Lake camp site.
Thornton Lakes Road Professional Reviews and Guides
"Hike to the largest of three gorgeous backcountry lakes set in deep scoured cirques, or scramble up a narrow spine to Trappers Peak to snag some of the best alpine viewing this side of the Continental Divide. Both destinations will cost you dearly in caloric output. Lots of elevation gain over steep and rough terrain is what keeps this day-hike-accessible corner of the North Cascades National Park from being overrun."
--Craig Romano, Day Hiking: North Cascades (The Mountaineers Books).
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