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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

Shields Lowline

15.3 mi out & back · 3,636 ft gain · 7,199 ft high point · Very hard

From Porcupine Trailhead

Montana · U.S. Forest Service

Elevation Map Camp near here More hikes

Elevation

3,636 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

0.1 mi from the trailhead
Porcupine Cabin
Campground · Montana

More hikes nearby

Ranked the same way, within twenty-five miles.

24 mi from you
Hatfield Mountain
- Summits Hatfield Mountain
- Inside Gallatin National Forest
- 3,361 ft of climbing
15.7 mi out & back · 3,361 ft gain · Very hard
Gallatin National Forest · Camp 11 mi away
4 mi from you

Out: 1,860 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: 15.3 mi
Shape: Out & back
Gain: 3,636 ft round trip
High point: 7,199 ft
Low point: 6,425 ft
Difficulty: Very hardFrom 15.3 mi and 3,636 ft of climbing
Managed by: U.S. Forest Service
State: Montana
Start: Porcupine Trailhead
Trailhead: 46.1123° N · 110.4723° W

Get directions Open the map

6.0 mi from the trailhead

Crandall Creek Cabin

Campground · Montana

7.7 mi from the trailhead

Ibex Cabin

Campground · Montana

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

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

Weather

7-day forecast

Today53°39°Sunny
Thu57°40°Partly Sunny
Fri52°38°Mostly Sunny
Sat48°33°Mostly Sunny
Sun44°32°Mostly Sunny
Mon46°34°Mostly Sunny
Tue42°Chance Snow Showers

Today: Sunny · wind 3 to 10 mph SW

National Weather Service · refreshed hourly

Signal

Cell coverage here

T-MobileLTE · Fair

FCC coverage data · signal varies in remote terrain