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Average nightly rates37 total sites
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13 sites
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24 sites
About Flat Rock (Idaho)
Number of accommodations: 37
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Nearby
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Year-round
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Seasonal information
2026 Season availability
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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
DeLoy and Lorna R
VerifiedAugust 22, 2026 • Stayed at: B009, Loop: FLAT
Everything was great!
Joyce L
VerifiedAugust 22, 2026 • Stayed at: B007, Loop: FLAT
We had a great time. We had our family with us- the camp ground is clean - there is loud noise from the highway which is distracting
Shenece B
VerifiedAugust 21, 2026 • Stayed at: B015, Loop: FLAT
Toilet needs to be emptied more often.
Paul C
VerifiedAugust 16, 2026 • Stayed at: B008, Loop: FLAT
Clean well taken care of campsites and facilities.
Alice N
VerifiedAugust 12, 2026 • Stayed at: B007, Loop: FLAT
We were in A Loop and it was to close to the road Lots of noise B loop down by the river would have been much better!!!!!
Sarah G
VerifiedAugust 12, 2026 • Stayed at: B008, Loop: FLAT
Campsites had space for a tent on the pad and the trailer. Nice trees for hammocks. Highway is heard through the night so not completely peaceful.
Campground host was not very pleasant.
Drove up on our site multiple times and barked orders versus kindly introducing herself and giving information. She also asked my children questions about if the adults are following her orders. Nice campground, would have been a better experience with kinder host.
jana l
VerifiedAugust 8, 2026 • Stayed at: B013, Loop: FLAT
The camp hosts on both the upper and lower loops of flat rock seem to go out of their way to be contentious and miserable. I watched the camp host whistle down a man who was lost and had gone the wrong way on the A loop. When she got up to the window of his truck she said “are you out of your mind?”
They seem to enjoy confronting everyone and making life miserable. At one point, she came around to all the campers and said we were to keep our garbage in our camps because she was locking the dumpster. So on one hand, we have been conditioned to keep our camp spotless to avoid any problem with the bears and she was more than happy to have us keep our garbage all night long in the open as our bear boxes were in use with coolers.
These host makes such a pleasant and beautiful experience, absolutely miserable.
Ken C
VerifiedAugust 2, 2026 • Stayed at: B007, Loop: FLAT
Well-maintained and managed. Beautiful area!
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.
Georgia B
VerifiedJuly 28, 2026 • Stayed at: B008, Loop: FLAT
Annie is amazing & keeps the campground clean & in order.
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.
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Nearby destinations
Last updated: September 6, 2026
