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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

Merritt 42

3.4 mi loop · 666 ft gain · 5,285 ft high point · Very hard

Loop with Merritt 08, Merritt 44, and Merritt 09

SD · U.S. Forest Service

Elevation Map Camp near here More hikes

Elevation

666 ft of gain around the loop.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

2.6 mi from the trailhead
Pactola Reservoir Campground
Campground

More hikes nearby

Ranked the same way, within twenty-five miles.

16 mi from you
Harney # 9 North
- Summits Black Elk Peak
- Inside Black Hills National Forest
- 3,190 ft of climbing
13.3 mi loop · 3,182 ft gain · Very hard
Black Hills National Forest · Camp 2 mi 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: 3.4 mi
Shape: Loop
Gain: 666 ft
High point: 5,285 ft
Low point: 4,883 ft
Difficulty: Very hard
Managed by: U.S. Forest Service
State: SD
Trailhead: 44.1062° N · 103.5634° W

Get directions Open the map

2.9 mi from the trailhead

Bear Gulch

Campground

6.5 mi from the trailhead

Boxelder Forks Campground

Campground

5 mi from you

Centennial Trail

Summits Bear Butte
Inside Wind Cave National Park
20,627 ft of climbing

120.2 mi one way · 20,627 ft gain

Wind Cave National Park · Camp 1 mi away

Flume

Ends at Sheridan Lake
Inside Black Hills National Forest
3,229 ft of climbing

19.6 mi out & back · 3,229 ft gain · Very hard

Black Hills National Forest · Camp 5 mi away

Horsethief #14

Ends at Horse Thief Lake
Inside Black Hills National Forest
2,337 ft of climbing

14.4 mi out & back · 2,337 ft gain · Very hard

Black Hills National Forest · Camp 2 mi away

Harney # 9 South

Summits Black Elk Peak
Camp 3 mi away

3.4 mi out & back · 981 ft gain · Very hard

SD · Camp 3 mi away

Centennial Horse Bypass

Ends at Sheridan Lake
Inside Black Hills National Forest
3,366 ft of climbing

21.6 mi loop · 3,353 ft gain · Moderate

Black Hills National Forest · Camp 5 mi away

Signal

Cell coverage here

VerizonLTE · Poor

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Today70°47°Mostly Sunny
Sat75°44°Sunny
Sun71°50°Partly Sunny
Mon70°42°Chance Showers And Thunderstorms
Tue66°43°Slight Chance Rain Showers
Wed68°42°Sunny
Thu67°43°Mostly Sunny

Today: Mostly Sunny · wind 7 mph SE

National Weather Service · refreshed hourly