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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

South Diaper Line

Inside Gallatin National Forest
Camp 1 mi away

3.0 mi one way · 695 ft climb · 6,733 ft high point · Moderate

In Gallatin National Forest · Montana · U.S. Forest Service

About Elevation Map Camp near here More hikes

About this hike

South Diaper Line is a moderate 3.0 mi one-way trail in Gallatin National Forest.

Elevation

170 ft of gain and 695 ft of descent.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

1.2 mi from the trailhead
Langohr Campground
Campground

More hikes nearby

Ranked the same way, within twenty-five miles.

13 mi from you
Storm Castle MTN
- Summits Storm Castle
- Inside Gallatin National Forest
- 1,969 ft of climbing
2.2 mi one way · 1,969 ft climb · Very hard
Gallatin National Forest · Camp under a mile away

Elevation along the trail from the start. 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: 3.0 mi
Shape: One way
Gain: 170 ft
Descent: 695 ft
High point: 6,733 ft
Low point: 6,155 ft
Difficulty: Moderate
Managed by: U.S. Forest Service
State: Montana
Camps within 15 mi: 15
Trailhead: 45.5471° N · 111.0002° W

Get directions Open the map

2.4 mi from the trailhead

Lower Hyalite Group

Campground

3.9 mi from the trailhead

Mystic Lake Cabin

Campground · Montana

6 mi from you

Blackmore

Summits Mount Blackmore
Inside Gallatin National Forest
3,659 ft of climbing

6.2 mi one way · 3,659 ft climb · Very hard

Gallatin National Forest · Camp under a mile away

Mist Creek

Summits The Sentinel
Inside Gallatin National Forest
3,010 ft of climbing

4.3 mi one way · 3,010 ft climb · Very hard

Gallatin National Forest · Camp 3 mi away

Table Mountain

Passes Table Mountain
Inside Lee Metcalf Wilderness
3,474 ft of climbing

7.9 mi one way · 3,474 ft climb · Very hard

Lee Metcalf Wilderness · Camp 4 mi away

Gallatin Crest

Summits Hyalite Peak
Inside Gallatin National Forest
6,529 ft of climbing

22.2 mi one way · 6,529 ft climb · Very hard

Gallatin National Forest · Camp 5 mi away

South Cottonwood

Summits Elephant Mountain
4,286 ft of climbing
Camp 2 mi away

11.9 mi one way · 4,286 ft climb · Very hard

Montana · Camp 2 mi away

Signal

Cell coverage here

VerizonLTE · Poor

FCC coverage data · signal varies in remote terrain

More like this

Hikes that read like this one, wherever they are.

Diaper Line
- 1,090 ft of climbing
- Camp 2 mi away
4.3 mi one way · 1,090 ft climb · Hard
Montana · Camp 2 mi away
Dutchman Basin
- Inside Gallatin National Forest
- Camp 3 mi away
1.2 mi one way · 595 ft climb · Very hard
Gallatin National Forest · Camp 3 mi away
North Trail Creek Divide
- Inside Gallatin National Forest
- Camp 2 mi away
1.5 mi one way · 780 ft climb · Moderate
Gallatin National Forest · Camp 2 mi away
North DRY Divide
- Inside Gallatin National Forest
- 2,923 ft of climbing
6.7 mi one way · 2,923 ft climb · Very hard
Gallatin National Forest · Camp 7 mi away

Weather

7-day forecast

Today72°47°Chance Rain Showers
Fri67°43°Chance Rain Showers
Sat56°40°Rain
Sun65°41°Mostly Sunny
Mon70°43°Sunny
Tue70°43°Sunny
Wed71°43°Sunny

Today: Chance Rain Showers · wind 7 mph S

National Weather Service · refreshed hourly