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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

Grizzly Basin

Summits Sunday Mountain
Inside Lolo National Forest
3,030 ft of climbing

5.2 mi one way · 3,030 ft climb · 7,925 ft high point · Very hard

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

About Elevation Highlights Map Camp near here More hikes

About this hike

Grizzly Basin climbs very steeply 5.2 miles one way to Sunday Mountain in Lolo National Forest, passing Morrell Falls and Morrell Lake.

Elevation

3,030 ft of gain and 0 ft of descent.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

5.3 mi from the trailhead
Lakeside Lolo Campground (MT)
Campground · Montana

More hikes nearby

Ranked the same way, within twenty-five miles.

17 mi from you
Charlotte Peak
- Summits Charlotte Peak
- Inside Bob Marshall Wilderness
- 3,558 ft of climbing
4.4 mi one way · 3,558 ft climb · Very hard
Bob Marshall Wilderness · Camp 15 mi away

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

Highlights

What the trail reaches, measured from the start.

Sunday MountainDestination · 5.2 mi in
Morrell LakeAlong the way · 0.0 mi in
Morrell FallsAlong the way · 0.1 mi in
WaterfallAlong the way · 0.8 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: 5.2 mi
Shape: One way
Gain: 3,030 ft
Descent: 0 ft
High point: 7,925 ft
Low point: 4,893 ft
Difficulty: Very hard
Managed by: U.S. Forest Service
State: Montana
Camps within 15 mi: 13
Trailhead: 47.3462° N · 113.4708° W

Get directions Open the map

5.4 mi from the trailhead

Lake Alva Campground

Campground · Montana

5.8 mi from the trailhead

Rainy Lake Campground

Campground · Montana

16 mi from you

Jumbo Mtn.

Summits Jumbo Mountain
Inside Bob Marshall Wilderness
3,403 ft of climbing

4.4 mi one way · 3,403 ft climb · Very hard

Bob Marshall Wilderness · Camp 12 mi away

Sapphire - Smokey

Summits Rodgers Peak
Inside Bob Marshall Wilderness
2,337 ft of climbing

4.5 mi one way · 2,337 ft climb · Very hard

Bob Marshall Wilderness · Camp 1 mi away

Bar Creek

Summits Triple Divide
Inside Bob Marshall Wilderness
3,477 ft of climbing

5.8 mi one way · 3,477 ft climb · Very hard

Bob Marshall Wilderness · Camp 12 mi away

Haystack Mtn.

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

3.6 mi one way · 3,115 ft climb · Very hard

Bob Marshall Wilderness · Camp 14 mi away

Basin Creek

Summits Trap Mountain
Inside Bob Marshall Wilderness
3,128 ft of climbing

5.3 mi one way · 3,128 ft climb · Moderate

Bob Marshall Wilderness · Camp 9 mi away

More like this

Hikes that read like this one, wherever they are.

Grizzly Creek
- Near Grizzly Point
- Inside Lolo National Forest
- 3,012 ft of climbing
5.3 mi one way · 3,012 ft climb · Very hard
Lolo National Forest · Camp 12 mi away
Missoula Lake
- Inside Lolo National Forest
- 1,450 ft of climbing
2.3 mi one way · 1,450 ft climb · Very hard
Lolo National Forest · Camp 11 mi away
Mineral Peak
- Inside Lolo National Forest
- 1,332 ft of climbing
1.6 mi one way · 1,332 ft climb · Very hard
Lolo National Forest
Montreal Gulch
- Inside Lolo National Forest
- 1,612 ft of climbing
1.8 mi one way · 1,612 ft climb · Very hard
Lolo National Forest · Camp 7 mi away

Weather

7-day forecast

Today57°44°Partly Sunny
Sat54°41°Chance Light Rain
Sun57°43°Sunny
Mon58°44°Sunny
Tue57°43°Sunny
Wed56°43°Sunny
Thu58°45°Sunny

Today: Partly Sunny then Slight Chance Showers And Thunderstorms · wind 2 to 8 mph WSW

National Weather Service · refreshed hourly

Signal

Cell coverage here

No carrier reports signal at this spot.

FCC coverage data · signal varies in remote terrain