Featured amenities
Parking
Restrooms
Sites & Rates
Average nightly rates37 total sites
RV Sites
13 sites
Tent Sites
24 sites
About Flat Rock (Idaho)
Number of accommodations: 37
Activities & Attractions
Nearby
Fishing
Hiking
Year-round
Fishing
Hiking
Seasonal information
2026 Season availability
Campground Amenities
Most popular amenities
Parking
Restrooms
Water and Hygiene
- Restrooms
Parking and Transport
- Parking
Report Incorrect Information
Help us improve by reporting any incorrect amenity information for Flat Rock (Idaho).
Rates, Sites & Availability
37 Sites Available
No sites found matching your criteria.
No available sites
All sites are booked for your selected dates. Try showing all sites to see booked options, create an alert to be notified when something opens up, or adjust your dates.
Site Details
Select a site to view details
37 Sites Available
No available sites
All sites are booked for your selected dates. Try showing all sites to see booked options, create an alert to be notified when something opens up, or adjust your dates.
Reviews (177)
What Guests Are Saying
Flat Rock Campground in Idaho offers a clean and well-maintained environment with spacious campsites and beautiful surroundings, making it a great spot for families and outdoor enthusiasts. Many reviews highlight the helpfulness of camp host Annie, who is praised for her dedication to maintaining the campground. However, some guests report issues with noise from the nearby highway and mixed experiences with camp hosts, suggesting improvements in host interactions and garbage management would enhance the overall experience.
What Guests Are Saying
Flat Rock Campground in Idaho offers a clean and well-maintained environment with spacious campsites and beautiful surroundings, making it a great spot for families and outdoor enthusiasts. Many reviews highlight the helpfulness of camp host Annie, who is praised for her dedication to maintaining the campground. However, some guests report issues with noise from the nearby highway and mixed experiences with camp hosts, suggesting improvements in host interactions and garbage management would enhance the overall experience.
Review Summary
Austin J
VerifiedSeptember 14, 2025 • Stayed at: B015, Loop: FLAT
Clean campground I’ve been to many times and usually enjoy. The host this year was just rude multiple times and ruined the entire experience. Will probably not be back.
Austin J
VerifiedSeptember 14, 2025 • Stayed at: B015, Loop: FLAT
Clean campground I’ve been to many times and usually enjoy. The host this year was just rude multiple times and ruined the entire experience. Will probably not be back.
Lisa K
VerifiedNovember 16, 2025 • Stayed at: B013, Loop: FLAT
So nice and quiet! Loved the cows!
Lisa K
VerifiedNovember 16, 2025 • Stayed at: B013, Loop: FLAT
So nice and quiet! Loved the cows!
David G
VerifiedNovember 19, 2025 • Stayed at: B016, Loop: FLAT
Centrally located in Island Park. Good place for a couple nights stay. Watch out for those overhead branches. Make sure if you are in Loop B and coming from West Yellowstone you take the 2nd entrance, not the one down by the bridge.
David G
VerifiedNovember 19, 2025 • Stayed at: B016, Loop: FLAT
Centrally located in Island Park. Good place for a couple nights stay. Watch out for those overhead branches. Make sure if you are in Loop B and coming from West Yellowstone you take the 2nd entrance, not the one down by the bridge.
Tracey S
VerifiedJune 1, 2026 • Stayed at: B011, Loop: FLAT
Annie was a great Campground hostess. Involved, but not overwhelming
Edwin P
VerifiedJune 1, 2026 • Stayed at: B013, Loop: FLAT
The camp host Anne is wonderful. She takes great pride in keeps the camp sites clean. We love this campground.
Robert B
VerifiedJune 6, 2026 • Stayed at: B010, Loop: FLAT
Great location, 30 min or so from West Yellowstone NP entrance. This is a weird thing to comment on, the drop toilets were the cleanest, best smelling I have had the honor of using.
Joseph P
VerifiedJune 12, 2026 • Stayed at: B016, Loop: FLAT
Camp host was awful complained about dog barking during the middle of the day, but it was okay for her dog to bark
Location Flat Rock (Idaho)
Address:
Highway 20
Island Park, ID, 83429
United States
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.
The campground is accessible via U.S. Highway 20, which runs north and south with connections to West Yellowstone, Montana, and Ashton, Idaho.
Elevation: 1962 feet
5.4 mi drive to downtown Island Park (about 6 min)
Policies & Rules
General
- Wildlife Caution
- Idaho OHV Safety Message
- A $7 fee for extra vehicles will be collected at the campground
- No ATVs/OHVs allowed in the campground
- This campground has first come, first served sites
- Click here for more information on the Caribou-Targhee National Forest
- Don't Move Firewood: Help prevent the spread of tree-killing pests in our national forests by obtaining firewood near your destination and burning it on-site. For more information visit dontmovefirewood.org.
Nearby Campgrounds
Nearby destinations
Last updated: September 10, 2026
