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Site Open
Recreation Region: Madison Ranger District

Potosi Campground and Picnic Area

This campground is located on the east side of the Tobacco Root Mountains with South Willow Creek running through the middle. There are 15 designated campsites, a picnic day-use area, vault toilets, and drinking water at this site. There are no garbage services, so pack it in and pack it out. We recommend trailer length does not exceed 22'.

Current Conditions
Drinking water is not available.

Reservations

General Information

  • There is no cell phone coverage at this area.
  • There is no garbage service at this site; pack out what you pack in.

Open annually, from late May through mid-September weather dependent.

Open annually, from late May through mid-October weather dependent.

No fees are required for this site

There is no fee ($0) for this campground.

Madison Ranger District office building

Address: 5 Forest Service Road Ennis, MT 59729
Phone: 406-682-4253
Hours: Monday to Friday, 8 a.m. to 4:30 p.m. (Closed on federal holidays)

Getting There

Latitude / Longitude

Latitude: 45.575006

Longitude: -111.910205

Elevation

6,200

Directions

From Harrison travel West on Pony Road for about 7 miles. At Pony, take South Willow Creek Road South for 10 miles. Follow the signs to the campground.

Facility and Amenity Information

Restrooms

Restrooms are available at this site.

Water

Potable water is not available at this site.

Drinking water is not available.

Recreation Opportunities

Hiking Hiking
Hunting, Fishing and Shooting Hunting, Fishing and Shooting

Day HikesDay Hikes

Fishing - River/StreamFishing - River/Stream

Last updated May 29th, 2025