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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

Grass Ridge

Summits Hells Half Acre Mountain
Inside Bitterroot National Forest
3,859 ft of climbing

6.3 mi one way · 3,859 ft climb · 8,115 ft high point · Very hard

In Bitterroot National Forest · Idaho · U.S. Forest Service

About Elevation Highlights Map Camp near here More hikes

About this hike

Grass Ridge climbs 3,859 feet to Hells Half Acre Mountain over 6.3 miles one way in Bitterroot National Forest.

Elevation

3,859 ft of gain and 277 ft of descent.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

4.5 mi from the trailhead
Magruder Rangers House
Campground · Montana
9.9 mi from the trailhead

More hikes nearby

Ranked the same way, within twenty-five miles.

Elevation along the trail from the start. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Hells Half Acre MountainDestination · 6.3 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: 6.3 mi
Shape: One way
Gain: 3,859 ft
Descent: 277 ft
High point: 8,115 ft
Low point: 4,533 ft
Difficulty: Very hard
Managed by: U.S. Forest Service
State: Idaho
Camps within 15 mi: 4
Trailhead: 45.6380° N · 114.7056° W

Get directions Open the map

Wendover Campground

Campground

10.0 mi from the trailhead

Horse Heaven Cabin

Campground · Montana

21 mi from you

Big Bear Creek

Summits Arctic Point
Inside Payette National Forest
2,469 ft of climbing

6.9 mi one way · 2,469 ft climb · Easy

Payette National Forest · Camp 15 mi away

Eagle Ridge

Summits Three Prong Mountain
Inside Selway-Bitterroot Wilderness
4,174 ft of climbing

8.7 mi one way · 4,174 ft climb · Easy

Selway-Bitterroot Wilderness · Camp 7 mi away

Little Boulder

Summits Piquett Mountain
Inside Bitterroot National Forest
4,092 ft of climbing

6.1 mi of trails · 4,092 ft climb · Very hard

Bitterroot National Forest · Camp 3 mi away

Bare Cone

Summits Bare Cone
Inside Bitterroot National Forest
2,795 ft of climbing

3.3 mi of trails · 2,795 ft climb · Very hard

Bitterroot National Forest · Camp under a mile away

Deep Creek-Beaver Jack

Summits Beaver Jack Mountain
Inside Bitterroot National Forest
3,035 ft of climbing

4.1 mi one way · 3,035 ft climb · Very hard

Bitterroot National Forest · Camp under a mile away

Filly Creek

Summits Parker Mountain
Inside Salmon National Forest
3,682 ft of climbing

7.1 mi one way · 3,682 ft climb · Easy

Salmon National Forest · Camp 11 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

Wed72°46°Sunny
Thu76°49°Mostly Sunny
Fri65°46°Light Rain Likely
Sat66°46°Slight Chance Light Rain
Sun71°47°Sunny
Mon72°47°Sunny
Tue69°Sunny

Wed: Sunny · wind 2 to 6 mph NE

National Weather Service · refreshed hourly

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- 3,397 ft of climbing
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Bitterroot National Forest · Camp under a mile away