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Average nightly rates37 total sites
RV Sites
13 sites
Tent Sites
24 sites
About Flat Rock (Idaho)
Number of accommodations: 37
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Nearby
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Year-round
Fishing
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Seasonal information
2026 Season availability
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- Restrooms
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- Parking
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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
Frank H
VerifiedSeptember 14, 2023 • Stayed at: B015, Loop: FLAT
We love this campground. The host is friendly and keeps the bathrooms nice and clean. She comes around to check on us. Ready access to Mack's Inn and the Big Spring area. 45 min from West Yellowstone.
John B
VerifiedSeptember 10, 2023 • Stayed at: B006, Loop: FLAT
This campground is close enough to Yellowstone national park and the price is right.
John B
VerifiedSeptember 10, 2023 • Stayed at: B006, Loop: FLAT
This campground is close enough to Yellowstone national park and the price is right.
Marion T
VerifiedAugust 27, 2023 • Stayed at: B006, Loop: FLAT
Wonderful, clean campsites, and the host was wonderful! The host name was Annie. I would definitely stay here again, and tell my friends about it.
Marion T
VerifiedAugust 27, 2023 • Stayed at: B006, Loop: FLAT
Wonderful, clean campsites, and the host was wonderful! The host name was Annie. I would definitely stay here again, and tell my friends about it.
Derek S
VerifiedAugust 25, 2023 • Stayed at: B006, Loop: FLAT
The facilities were very well maintained and the camp hits were friendly and helpful!
Derek S
VerifiedAugust 25, 2023 • Stayed at: B006, Loop: FLAT
The facilities were very well maintained and the camp hits were friendly and helpful!
John T
VerifiedAugust 22, 2023 • Stayed at: B006, Loop: FLAT
Flat Rock campground is a very clean campground. The campground hosts are very nice and fun to talk with. The sites are are spacious with great fire pit and large tent pad. There was a place to park our 4-wheelers. Close to 4-wheeler trails and all the beauty of the area.
John T
VerifiedAugust 22, 2023 • Stayed at: B006, Loop: FLAT
Flat Rock campground is a very clean campground. The campground hosts are very nice and fun to talk with. The sites are are spacious with great fire pit and large tent pad. There was a place to park our 4-wheelers. Close to 4-wheeler trails and all the beauty of the area.
Scott D
VerifiedJuly 20, 2023 • Stayed at: B015, Loop: FLAT
The campground was nice. It’s close to mesa falls which is pretty to see.
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
