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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

Big George Gulch

Passes Gibson Reservoir
Inside Lewis & Clark National Forest
4,306 ft of climbing

18.2 mi out & back · 4,306 ft gain · 6,980 ft high point · Very hard

Via 201 Alternate and North Fork Sun River (2.2 mi)

In Lewis & Clark National Forest · Montana · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Big George Gulch climbs 4,306 feet along Gibson Reservoir over 18.2 miles out and back in Lewis & Clark National Forest.

Elevation

4,306 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

2.1 mi from the trailhead
Home Gulch Campground
Campground · Montana

More hikes nearby

Ranked the same way, within twenty-five miles.

22 mi from you
Jumbo Mtn.
- Summits Jumbo Mountain
- Inside Bob Marshall Wilderness
- 3,423 ft of climbing
8.7 mi out & back · 3,423 ft gain · Very hard
Bob Marshall Wilderness · Camp 12 mi away

Out: 2,810 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Gibson ReservoirAlong the way · 2.0 mi in

Map

The hike from its start, the approach dashed. 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: 18.2 mi
Shape: Out & back
Gain: 4,306 ft round trip
High point: 6,980 ft
Low point: 4,730 ft
Difficulty: Very hardFrom 18.2 mi and 4,306 ft of climbing
Managed by: U.S. Forest Service
State: Montana
Camps within 15 mi: 4
Trailhead: 47.6049° N · 112.7672° W

Get directions Open the map

8.9 mi from the trailhead

Kenck Cabin

Campground · Montana

10.1 mi from the trailhead

Van Deriet Campground

Campground · Montana

21 mi from you

Bar Creek

Summits Triple Divide
Inside Bob Marshall Wilderness
3,668 ft of climbing

11.8 mi out & back · 3,668 ft gain · Very hard

Bob Marshall Wilderness · Camp 12 mi away

Basin Creek

Summits Trap Mountain
Inside Bob Marshall Wilderness
3,324 ft of climbing

10.7 mi out & back · 3,324 ft gain · Very hard

Bob Marshall Wilderness · Camp 11 mi away

Haystack Mtn.

Summits Haystack Mountain
Inside Bob Marshall Wilderness
3,115 ft of climbing

7.1 mi out & back · 3,115 ft gain · Hard

Bob Marshall Wilderness · Camp 14 mi away

Pilot Peak

Summits Gordon Mountain
Inside Bob Marshall Wilderness
4,123 ft of climbing

9.9 mi out & back · 4,123 ft gain · Very hard

Bob Marshall Wilderness

Tillson - Shale

Summits Shale Peak
Inside Bob Marshall Wilderness
5,150 ft of climbing

15.6 mi out & back · 5,150 ft gain · Very hard

Bob Marshall Wilderness

More like this

Hikes that read like this one, wherever they are.

Mortimer Gulch
- Passes Gibson Reservoir
- Inside Lewis & Clark National Forest
- 2,547 ft of climbing
12.3 mi out & back · 2,547 ft gain · Very hard
Lewis & Clark National Forest · Camp 2 mi away
Double Gulch
- Inside Lewis & Clark National Forest
- 2,244 ft of climbing
6.1 mi out & back · 2,244 ft gain · Hard
Lewis & Clark National Forest · Camp 7 mi away
Mortimer Pass
- Passes Gibson Reservoir
- Inside Lewis & Clark National Forest
- 2,487 ft of climbing
12.6 mi out & back · 2,487 ft gain · Very hard
Lewis & Clark National Forest · Camp 2 mi away
Fish & Game Cabin
- Passes Gibson Reservoir
- Inside Lewis & Clark National Forest
- 1,643 ft of climbing
13.3 mi loop · 1,633 ft gain · Hard
Lewis & Clark National Forest · Camp 2 mi away

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Today44°27°Sunny
Tue52°31°Mostly Cloudy
Wed51°30°Mostly Sunny
Thu47°31°Mostly Sunny
Fri45°30°Chance Rain And Snow
Sat48°33°Mostly Sunny
Sun56°34°Mostly Sunny

Today: Sunny · wind 7 mph W

National Weather Service · refreshed hourly