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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

Cottonwood Lowline

4,179 ft of climbing

18.4 mi out & back · 4,179 ft gain · 6,878 ft high point · Very hard

Montana · U.S. Forest Service

About Elevation Map Camp near here More hikes

About this hike

Cottonwood Lowline is an 18.4-mile out and back climbing 4,179 feet.

Elevation

4,179 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

6.2 mi from the trailhead
Ibex Cabin
Campground · Montana
8.9 mi from the trailhead

More hikes nearby

Ranked the same way, within twenty-five miles.

9 mi from you
Trespass
- Ends at Campfire Lake
- Inside Gallatin National Forest
- 3,868 ft of climbing
14.0 mi out & back · 3,868 ft gain · Very hard
Gallatin National Forest · Camp 1 mi away

Out: 1,920 ft up, returns the same way. Source: USGS 3DEP.

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: 18.4 mi
Shape: Out & back
Gain: 4,179 ft round trip
High point: 6,878 ft
Low point: 6,201 ft
Difficulty: Very hardFrom 18.4 mi and 4,179 ft of climbing
Managed by: U.S. Forest Service
State: Montana
Camps within 15 mi: 3
Trailhead: 45.9390° N · 110.3507° W

Get directions Open the map

Halfmoon Campground

Campground · Montana

13.3 mi from the trailhead

Porcupine Cabin

Campground · Montana

21 mi from you

Crow Creek

Passes Loco Mountain
Inside Lewis & Clark National Forest
4,529 ft of climbing

16.7 mi out & back · 4,529 ft gain · Very hard

Lewis & Clark National Forest · Camp 2 mi away

Mt. Elmo

Passes Mount Elmo
Inside Lewis & Clark National Forest
5,863 ft of climbing

17.5 mi out & back · 5,863 ft gain · Very hard

Lewis & Clark National Forest · Camp 2 mi away

Sunlight Lake

Passes North Fork Lake
Inside Gallatin National Forest
4,908 ft of climbing

14.6 mi out & back · 4,908 ft gain · Very hard

Gallatin National Forest · Camp 3 mi away

Smeller Lake

Ends at Smeller Lake
Inside Gallatin National Forest
2,120 ft of climbing

5.3 mi out & back · 2,120 ft gain · Very hard

Gallatin National Forest · Camp 5 mi away

Middle Fork Sweet Grass

Passes Campfire Lake
Inside Gallatin National Forest
5,348 ft of climbing

20.8 mi out & back · 5,348 ft gain · Very hard

Gallatin National Forest · Camp 1 mi away

More like this

Hikes that read like this one, wherever they are.

South Cottonwood
- Near Elephant Mountain
- Inside Gallatin National Forest
- 4,815 ft of climbing
23.4 mi out & back · 4,815 ft gain · Very hard
Gallatin National Forest · Camp 2 mi away
Cottonwood
- 1,868 ft of climbing
14.5 mi loop · 1,868 ft gain · Very hard
ND · Camp 8 mi away
Cottonwood Mountain
- Near Cottonwood Mountain
- 6,422 ft of climbing
17.5 mi out & back · 6,422 ft gain · Very hard
Arizona · Camp 12 mi away
East Fork Cottonwood Creek
- Near Greathouse Peak
- 4,440 ft of climbing
20.5 mi out & back · 4,440 ft gain · Very hard
Montana · Camp 7 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

Today49°41°Mostly Sunny
Sun53°37°Mostly Sunny
Mon48°37°Mostly Cloudy
Tue47°36°Mostly Sunny
Wed51°38°Mostly Sunny
Thu55°40°Mostly Sunny
Fri52°38°Mostly Sunny

Today: Mostly Sunny · wind 7 mph NNW

National Weather Service · refreshed hourly