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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
Activities & Attractions
Nearby
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Year-round
Fishing
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Seasonal information
2026 Season availability
Campground Amenities
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- Restrooms
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- Parking
Rates, Sites & Availability
37 Sites Available
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37 Sites Available
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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
Mark M
VerifiedAugust 13, 2020 • Stayed at: B017, Loop: FLAT
Great location!
Mark M
VerifiedAugust 13, 2020 • Stayed at: B017, Loop: FLAT
Great location!
Susan K
VerifiedAugust 21, 2020 • Stayed at: B015, Loop: FLAT
Fabulous place to stay! Bring the water toys, sun block and enjoy floating down the river. It is also about 30 minutes away from Yellowstone NP.
Susan K
VerifiedAugust 21, 2020 • Stayed at: B015, Loop: FLAT
Fabulous place to stay! Bring the water toys, sun block and enjoy floating down the river. It is also about 30 minutes away from Yellowstone NP.
Sandy T
VerifiedSeptember 6, 2020 • Stayed at: B015, Loop: FLAT
We had a great time! Host was friendly and informative.
Sandy T
VerifiedSeptember 6, 2020 • Stayed at: B015, Loop: FLAT
We had a great time! Host was friendly and informative.
Kenneth S
VerifiedJune 9, 2021 • Stayed at: B006, Loop: FLAT
Kenneth S
VerifiedJune 9, 2021 • Stayed at: B006, Loop: FLAT
Kenneth S
VerifiedJune 9, 2021 • Stayed at: B006, Loop: FLAT
Kenneth S
VerifiedJune 9, 2021 • Stayed at: B006, Loop: FLAT
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 6, 2026
