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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
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
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
Reed C
VerifiedJune 22, 2026 • Stayed at: B006, Loop: FLAT
Site was just right it fit our 30 foot trailer just fine. Our camp host Annie is the best. The only drawback is the noise from the highway and it really wasn’t that bad. Be aware there are some pretty good size potholes coming into the campground. Other than that exactly as we expected it was a beautiful Campground. Great neighbors and very close to Yellowstone and all the activities.
ryan f
VerifiedJuly 3, 2026 • Stayed at: B014, Loop: FLAT
this is a very loud camp ground, it is much to close to the road
Cody R
VerifiedJuly 12, 2026 • Stayed at: B008, Loop: FLAT
I like the stay. The park was clean and maintained. And would stay again. But the camp host was very disrespectful towards everyone that was trying to leave on time and harassed my family and I over trying to leave. And on getting there. Trying to find the camp was very stressful. Need more heads up and notice.
Paul M
VerifiedJuly 18, 2026 • Stayed at: B011, Loop: FLAT
Nice small campground. Could use a spruce up and some Site leveling. Great hosts very quiet area.
carol F
VerifiedJuly 19, 2026 • Stayed at: B010, Loop: FLAT
It was a very relaxing campground. It was cleaned. The trees were good and the camp post was very congenial.
David S
VerifiedJuly 22, 2026 • Stayed at: B009, Loop: FLAT
Central location. Dry camping. No dump site, water, but not at sites.
River is accessible walking through A loop, but private and no trespass within 200m on either side of flat Rock access.
Road noise due to highway within 50m.
Cell signal is weak, but usable (TMOBILE)
Matthew C
VerifiedJuly 28, 2026 • Stayed at: B007, Loop: FLAT
Site was a great place and the river access was just down the road.
Georgia B
VerifiedJuly 28, 2026 • Stayed at: B008, Loop: FLAT
Annie is amazing & keeps the campground clean & in order.
Ken C
VerifiedAugust 1, 2026 • Stayed at: B007, Loop: FLAT
Notice that ATVs are not allowed would have been nice. More and more pets are infringing on the serenity we used to expect, like the howling dog next to us.
Ken C
VerifiedAugust 2, 2026 • Stayed at: B007, Loop: FLAT
Well-maintained and managed. Beautiful area!
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
