Featured amenities
Parking
Restrooms
About Flat Rock (Idaho)
Number of accommodations: 37
Nearby Activities & Attractions
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 (154)
What Guests Are Saying
Flat Rock in Island Park offers a great location with clean facilities and spacious, shaded campsites, making it ideal for a short stay. Many visitors appreciate the welcoming and attentive campground host, who maintains a neat environment and fosters a pleasant atmosphere. However, some guests have reported issues with rude interactions with the host and road noise from the nearby highway, which detracts from the experience.
What Guests Are Saying
Flat Rock in Island Park offers a great location with clean facilities and spacious, shaded campsites, making it ideal for a short stay. Many visitors appreciate the welcoming and attentive campground host, who maintains a neat environment and fosters a pleasant atmosphere. However, some guests have reported issues with rude interactions with the host and road noise from the nearby highway, which detracts from the experience.
Review Summary
Kevin P
VerifiedAugust 30, 2022 • Stayed at: B010, Loop: FLAT
noisy from nearness to road. but well maintained very park like at every site. bathrooms clean, not bad smells, did i say well maintained??
Kevin P
VerifiedAugust 30, 2022 • Stayed at: B010, Loop: FLAT
noisy from nearness to road. but well maintained very park like at every site. bathrooms clean, not bad smells, did i say well maintained??
Dustin R
VerifiedAugust 6, 2022 • Stayed at: B010, Loop: FLAT
Dan and Annie were by far the best camp host we have experienced. This was our first time going to the Yellowstone area and they made the campground top notch. Lots of help and we would visit again any time.
Dustin R
VerifiedAugust 6, 2022 • Stayed at: B010, Loop: FLAT
Dan and Annie were by far the best camp host we have experienced. This was our first time going to the Yellowstone area and they made the campground top notch. Lots of help and we would visit again any time.
Debra S
VerifiedAugust 4, 2022 • Stayed at: B006, Loop: FLAT
Flatrock is a very nice campground. The sites are far apart and so you have privacy. The electric sites are a real plus. The camp hosts were really wonderful, making our stay(s) very pleasant. They kept the restrooms clean and well-stocked. The only draw back of this campground is the noise from the highway. A lot of big trucks using exhaust breaks at all times of the day and night.
Allison H
VerifiedAugust 4, 2022 • Stayed at: B017, Loop: FLAT
Great tent pad and campsite. Camp ground super clean. Camp host are lovely. Traffic noise.
Debra S
VerifiedAugust 4, 2022 • Stayed at: B006, Loop: FLAT
Flatrock is a very nice campground. The sites are far apart and so you have privacy. The electric sites are a real plus. The camp hosts were really wonderful, making our stay(s) very pleasant. They kept the restrooms clean and well-stocked. The only draw back of this campground is the noise from the highway. A lot of big trucks using exhaust breaks at all times of the day and night.
Allison H
VerifiedAugust 4, 2022 • Stayed at: B017, Loop: FLAT
Great tent pad and campsite. Camp ground super clean. Camp host are lovely. Traffic noise.
Holly H
VerifiedJuly 31, 2022 • Stayed at: B014, Loop: FLAT
This campground was perfect! We’ll definitely be back
Holly H
VerifiedJuly 31, 2022 • Stayed at: B014, Loop: FLAT
This campground was perfect! We’ll definitely be back
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.
Latitude & Longitude: 44.4969 / -111.34
Elevation: 1962 feet
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: June 4, 2026
