Established Camping
Flat Rock (idaho)
About
National Forest
Overview
Flat Rock Campground is located 22 miles south of West Yellowstone, Montana and 30 miles north of Ashton, Idaho in beautiful Island Park, Idaho. Flat Rock is adjacent to U.S. Highway 20 and the Henry's Fork of the Snake River at an elevation of 6,400 feet.
Recreation
Henry's Fork…
Access
- Drive-InPark next to your site
- Walk-InPark in a lot, walk to your site.
- Hike-InBackcountry sites.
- Boat-InSites accessible by watercraft.
Stay Connected
- WiFiGood
- VerizonUnknown
- AT&TUnknown
- T-MobileGood
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
- Group
- Cabins
- Tent Cabin
Features
For Campers
- Market
- ADA Access
- Trash
- Picnic Table
- Firewood Available
- Phone Service
- Reservable
- WiFi
- Showers
- Drinking Water
- Electric Hookups
- Toilets
- Alcohol
- Pets
- Fires
For Vehicles
- Sanitary Dump
- Sewer Hookups
- Water Hookups
- Pull-Through Sites
- Big Rig Friendly
Great spot
We pulled in and was greeted right away by the camp host who directed us to an open spot. We had a site with an electric hook up for $26 a night. Spot was great and very clean with bathrooms close by. We fit our 33’ pull behind easily. Close to the main road so you can hear traffic but it was…
- (4) View All
Beautiful Stream, but Noisy
Nice campground with 20 spots. Not full on Sunday. Close to US 20 and Henry’s Fork. No UTV-Off-road vehicles.
- (5) View All

Loved this place
We loved it here so much we stayed 3 extra days. One near encounter with a bear. Beautiful night sky. Easy access to the river. So clean. Hosts were the best hosts I have ever encountered. After a brief (10 min) rain/thunderstorm, host went and checked on everyone. Bathrooms cleaned daily. Very…
- (5) View All
Location
Flat Rock (idaho) is located in Idaho
Directions
From West Yellowstone, Montana, take U.S. Highway 20 south for 22 miles, or from Ashton, Idaho, take U.S. Highway 20 north for 30 miles. The campground entrance is 1/4 mile south of Macks Inn on the west side of the highway.
Coordinates
44.49694485 N
111.34000036 W