Flat Rock Campground

Flat Rock Campground is a seasonal Caribou-Targhee National Forest campground beside U.S. Highway 20 and the Henry’s Fork of the Snake River in Island Park. Located about one-quarter mile south of Macks Inn, it offers single and double campsites beneath lodgepole pines, including some sites with 50-amp electrical hookups.

Amenities & Features

• 🏕️ Single and double campsites
• ⚡ Some sites with 50-amp electric hookups
• 🧺 Picnic and utility tables, campfire rings, and tent pads
• 🚻 Vault toilets
• 💧 Drinking water
• 🗑️ Trash collection
• 🚗 Gravel interior roads and parking spurs
• 🎣 Fly-fishing for rainbow and brook trout
• 🛶 Tubing, canoeing, kayaking, and rafting on the Henry’s Fork
• 🥾 Nearby hiking, biking, horseback-riding, and ATV trails
• 🦌 Wildlife viewing in bear country

Good to Know

The campground is 22 miles south of West Yellowstone and 30 miles north of Ashton. Macks Inn, across the highway, offers groceries, gas, showers, laundry, boat rentals, and shuttle service. Some campsites are first come, first served. Recreation.gov lists a $7 fee for extra vehicles. ATVs and other OHVs are not allowed inside the campground. Store food securely and follow bear-safety rules. For current conditions, contact the campground at 208-558-7658 or 208-270-0094.