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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
Fishing
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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
Beth B
VerifiedSeptember 26, 2021 • Stayed at: B014, Loop: FLAT
Nice, quiet, small campground. Sites were large, level and extremely clean, well maintained. Park hosts were very friendly and helpful--gave me great local information. Site B14
Glenn H
VerifiedSeptember 18, 2021 • Stayed at: B010, Loop: FLAT
We had an awful time finding it, put an address on the website compatable with a GPS! Had we not called, worried about the wildfires we would have headed to the Stanley address. Even then no one had an address, just directions "across from Mack's in Island Park"?
Glenn H
VerifiedSeptember 18, 2021 • Stayed at: B010, Loop: FLAT
We had an awful time finding it, put an address on the website compatable with a GPS! Had we not called, worried about the wildfires we would have headed to the Stanley address. Even then no one had an address, just directions "across from Mack's in Island Park"?
Kevin T
VerifiedSeptember 7, 2021 • Stayed at: B013, Loop: FLAT
We were very impressed with the neatness and tidiness of the whole campground. bathrooms very clean, we will definitely return.
Kevin T
VerifiedSeptember 7, 2021 • Stayed at: B013, Loop: FLAT
We were very impressed with the neatness and tidiness of the whole campground. bathrooms very clean, we will definitely return.
bryan p
VerifiedSeptember 5, 2021 • Stayed at: B010, Loop: FLAT
Nice wide level campsite. Access road is dirt, so some dust. Also some traffic noise from the highway. Good host. The loops are not well marked and should be.
bryan p
VerifiedSeptember 5, 2021 • Stayed at: B010, Loop: FLAT
Nice wide level campsite. Access road is dirt, so some dust. Also some traffic noise from the highway. Good host. The loops are not well marked and should be.
Jeffrey F
VerifiedAugust 23, 2021 • Stayed at: B008, Loop: FLAT
Very clean. Camp host was friendly and attentive. Highly recommend.
Jeffrey F
VerifiedAugust 23, 2021 • Stayed at: B008, Loop: FLAT
Very clean. Camp host was friendly and attentive. Highly recommend.
Ellen S
VerifiedAugust 19, 2021 • Stayed at: B015, Loop: FLAT
Very clean campsite. Clean bathrooms. Dog friendly and walkable to Mack's Inn where the rest of the family was.
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
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Last updated: September 10, 2026
