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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

Sourdough Mountain Trail

Ends at Ross Lake
9,423 ft of climbing
Camp under a mile away

20.7 mi out & back · 9,423 ft gain · 6,001 ft high point · Very hard

From Sourdough Trailhead

Washington · OpenStreetMap contributors

About Elevation Highlights Map Camp near here More hikes

About this hike

This 20.7-mile out and back from Sourdough Trailhead reaches Ross Lake in North Cascades National Park with 9,423 feet of climb.

Elevation

9,423 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

0.3 mi from the trailhead
Gorge Lake Campground
Campground · WASHINGTON

More hikes nearby

Ranked the same way, within twenty-five miles.

17 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: 5,140 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Ross LakeDestination · 10.1 mi in
Gorge LakeNearby · 0.0 mi in
Sourdough MountainNearby · 3.6 mi in
Diablo LakeNearby · 5.2 mi in
Pierce MountainNearby · 6.6 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: 20.7 mi
Shape: Out & back
Gain: 9,423 ft round trip
High point: 6,001 ft
Low point: 897 ft
Difficulty: Very hardFrom 20.7 mi and 9,423 ft of climbing, with steep sections
Managed by: OpenStreetMap contributors
State: Washington
Camps within 15 mi: 14
Start: Sourdough Trailhead
Trailhead: 48.7179° N · 121.1453° W

Get directions Open the map

0.3 mi from the trailhead

Gorge Lake Campground

Campground

2.7 mi from the trailhead

Colonial Creek North Campground

Campground

20 mi from you

Black Peak Trail

Summits Black Peak
Inside Wenatchee National Forest
5,664 ft of climbing

11.2 mi out & back · 5,664 ft gain · Very hard

Wenatchee National Forest · Camp 12 mi away

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

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

West Fork Pasayten Trail

Summits Slate Peak
Inside Pasayten Wilderness
3,545 ft of climbing

14.6 mi one way · 3,545 ft gain · Very hard

Pasayten Wilderness

More like this

Hikes that read like this one, wherever they are.

Ross Dam Trail
- Ends at Ross Lake
- 3,197 ft of climbing
- Camp 3 mi away
13.7 mi out & back · 3,197 ft gain · Very hard
Washington · Camp 3 mi away
East Bank Trail
- Ends at Ross Lake
- 3,876 ft of climbing
16.3 mi one way · 3,876 ft gain · Very hard
Washington · Camp 9 mi away
The Great North Cascades Traverse
- Ends at Ross Lake
- 12,620 ft of climbing
- Camp 3 mi away
31.0 mi one way · 12,620 ft gain · Very hard
Washington · Camp 3 mi away
Little Beaver Trail
- Ends at Ross Lake
- 5,065 ft of climbing
- Camp 5 mi away
16.2 mi one way · 5,065 ft gain · Very hard
Washington · Camp 5 mi away

Weather

7-day forecast

Wed46°33°Rain And Snow
Thu49°34°Slight Chance Rain And Snow
Fri47°33°Chance Light Snow
Sat51°34°Mostly Sunny
Sun52°36°Partly Sunny
Mon56°39°Partly Sunny
Tue57°Partly Sunny

Wed: Rain And Snow · wind 1 to 7 mph WSW

National Weather Service · refreshed hourly

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain