Heather - Maple Pass Loop
2 days ago
Vibrant crimson and scarlet undergrowth
14 this month · 121 reports
Thornton Lakes and Trappers Peak
North Cascades
updated 2 weeks ago
I've been asked to summarize current conditions for Thornton Lakes and Trappers Peak as of today, September 23, 2026, based on trip reports from July 3 to September 8, 2026.
The trail to Thornton Lakes and Trappers Peak is generally in good condition, with minor obstacles. Reports indicate the trail is snow-free as of September 8. The road to the trailhead is rough but passable, with some reports recommending higher clearance vehicles, though sedans have made it to the trailhead at slow speeds September 8. Parking at the trailhead can be very limited, even on weekdays. Berries, particularly blueberries, were ripe and plentiful in late July and early August, with some reports noting they were picked over by early September, September 5. Views are generally superlative, though haze from wildfires was noted in July 12.
Generated from 32 trip reports. Trails change faster than reports do, so check anything you’d turn around for.
What hikers ask about Thornton Lakes and Trappers Peak
Generated from the most recent trip reports, newest 2 weeks ago. Check anything you’d turn around for.
The 5-mile gravel road to the trailhead is rough, steep, and contains numerous bumps, potholes, and washboarding. While higher clearance vehicles are recommended, sedans have successfully reached the trailhead by driving slowly. The road was noted as rough but passable as of September 8.
The main parking lot is small and can fill up quickly, with reports of it being full by 10 AM on a sunny Tuesday. Hikers have also parked along the road leading to the trailhead. Weekday visits are recommended due to limited parking.
The trail involves steep sections with roots and rocks, especially after the first two miles. The route to Trappers Peak includes a scramble that has been described as Class 2+/Low Class 3 with some minor exposure and steep, dusty couloirs that offer handholds, August 19.
One report from September 8 mentioned that the water in Thornton Lakes is frigid, even when snow-free, and a hiker took a dip. No specific information was provided about potable water sources along the trail or at the lakes.
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Trail notes generated from recent reports. Conditions change fast.
Sources
Recent2 weeks ago
North Cascades > North Cascades Highway - Hwy 20
Trappers Peak is one of the iconic hikes along the scenic HW 20 of the North Cascades, offering stunning views of the rugged Southern Pickets and Mount Triumph. Joining me on this trip were 3 fellow W...
Recent2 weeks ago
North Cascades > North Cascades Highway - Hwy 20
Went out with the Mountain Goats along with a few other friends on an adventure to Trapper's Peak and then the first Thornton Lake. The Thornton Lakes & Trappers Peak hike was recommended in Hike The ...
Recent2 weeks ago
North Cascades > North Cascades Highway - Hwy 20
TLDR: the trip down to Thornton Lakes is steep, and can be quite slippery in wet conditions. Berries are ripe but are pretty picked over trailside. The trail up to Trappers Peak is solid but there are...
Older1 month ago
North Cascades > North Cascades Highway - Hwy 20
The pertinent portion of this trip report concerns the scramble portion of Trapper Peak.There are several facts about the scramble portion of this trail that will encourage the hiker seeking the top:F...
Older2 months ago
North Cascades > North Cascades Highway - Hwy 20
Beautiful 3 days/2 nights. Road to trailhead was steep in places but most could get there if go slow but higher clearance better. We hiked into Thornton lakes camp Sunday. Many day hikers and a fe...
Older2 months ago
North Cascades > North Cascades Highway - Hwy 20
The road was passable with my sedan, although I had to crawl along at 5mph for the last few miles - high clearance would have been better. Trail conditions were fine, a little mud in places and a bit ...
Older2 months ago
North Cascades > North Cascades Highway - Hwy 20
Mellow groomed trail for first 2 miles then gets more challenging, going from frequent staircases of root and rock (some quite steep) to the scramble and condensed ascent toward the end after the trai...
Older3 months ago
North Cascades > North Cascades Highway - Hwy 20
Can a Honda Civic get to the trailhead? Today we found the answer was yes, but we would not recommended it. The gravel road up is steep, single-lane, and full of both potholes and hazardous rocks. Use...
Older3 months ago
North Cascades > North Cascades Highway - Hwy 20
This was a Mountaineers scramble of Trappers and X Mountain, the minor peak to the north along the same ridgeline. The only part of this that was a bit tricky was down-climbing through heather from Tr...
Older3 months ago
North Cascades > North Cascades Highway - Hwy 20
In all the years I've been backpacking and hiking in the North Cascades, I've never done this trail before so I decided to do a quick overnighter to get a sense of the lake. At the fork in the trail, ...