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© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

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Hike

Thornton Lakes Trail

Near Trappers Peak
Inside Stephen Mather Wilderness
3,471 ft of climbing

9.1 mi out & back · 3,471 ft gain · 5,023 ft high point · Very hard

In Stephen Mather Wilderness · Washington · OpenStreetMap contributors

About Elevation Highlights Map Camp near here More hikes

About this hike

This 9.1-mile out and back in Stephen Mather Wilderness climbs 3,471 feet to 5,023 feet, with Trappers Peak nearby.

Elevation

3,471 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

2.9 mi from the trailhead
Lower Goodell Group Campground
Campground · Washington

More hikes nearby

Ranked the same way, within twenty-five miles.

18 mi from you
Sahale Arm Trail
- Ends at Sahale Glacier
- Inside North Cascades National Park
- 4,235 ft of climbing
11.7 mi out & back · 4,235 ft gain · Very hard
North Cascades National Park · Camp 4 mi away

Out: 2,570 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Trappers PeakNearby · 4.2 mi in

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 9.1 mi
Shape: Out & back
Gain: 3,471 ft round trip
High point: 5,023 ft
Low point: 2,497 ft
Difficulty: Very hardFrom 9.1 mi and 3,471 ft of climbing
Managed by: OpenStreetMap contributors
State: Washington
Camps within 15 mi: 16
Trailhead: 48.6534° N · 121.3255° W

Get directions Open the map

3.0 mi from the trailhead

Goodell Creek Campground

Campground · Washington

3.0 mi from the trailhead

Goodell Creek Campground

Campground · Washington

20 mi from you

Hannegan Peak Trail

Summits Hannegan Peak
Inside Mt. Baker National Forest
3,773 ft of climbing

10.4 mi out & back · 3,773 ft gain · Very hard

Mt. Baker National Forest · Camp 5 mi away

Goat Mountain Trail

Summits Goat Mountain (West Peak)
Inside Mt. Baker National Forest
4,596 ft of climbing

9.2 mi out & back · 4,596 ft gain · Very hard

Mt. Baker National Forest · Camp 2 mi away

Lookout Mountain Trail

Summits Lookout Mountain
Inside Mt. Baker National Forest
4,476 ft of climbing

9.0 mi out & back · 4,476 ft gain · Very hard

Mt. Baker National Forest · Camp 1 mi away

South Fork Cascade River Trail

Ends at South Cascade Glacier
Inside Mt. Baker National Forest
7,596 ft of climbing

19.3 mi out & back · 7,596 ft gain · Very hard

Mt. Baker National Forest · Camp under a mile away

Chain Lakes Loop Trail

Ends at Table Mountain Glacier
Inside Mt. Baker National Forest
2,007 ft of climbing

6.3 mi loop · 2,007 ft gain · Hard

Mt. Baker National Forest · Camp 3 mi away

More like this

Hikes that read like this one, wherever they are.

Castle Pass
- Ends at Castle Pass
- Inside Stephen Mather Wilderness
- 8,447 ft of climbing
17.8 mi one way · 8,447 ft gain · Very hard
Stephen Mather Wilderness · Camp 7 mi away
Devil's Ridge Trail
- Ends at Ross Lake
- Inside Stephen Mather Wilderness
- 7,015 ft of climbing
18.5 mi one way · 7,015 ft gain · Very hard
Stephen Mather Wilderness · Camp 10 mi away
Rainbow Creek Trail
- Passes McAlester Pass
- Inside Stephen Mather Wilderness
- 4,522 ft of climbing
15.3 mi out & back · 4,522 ft gain · Very hard
Stephen Mather Wilderness · Camp 6 mi away
McGregor Mountain Trail
- Summits McGregor Mountain
- Inside Stephen Mather Wilderness
- 6,035 ft of climbing
12.1 mi out & back · 6,035 ft gain · Very hard
Stephen Mather Wilderness · Camp 6 mi away

Weather

7-day forecast

Today45°41°Chance Light Rain
Sun43°37°Light Rain
Mon41°35°Chance Rain And Snow
Tue43°33°Mostly Sunny
Wed42°33°Chance Light Snow
Thu43°31°Partly Sunny
Fri42°31°Mostly Sunny

Today: Chance Light Rain · wind 7 mph WSW

National Weather Service · refreshed hourly

Signal

Cell coverage here

VerizonLTE · Poor
AT&TNo signal

FCC coverage data · signal varies in remote terrain