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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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- 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
Sarah S
VerifiedJuly 25, 2021 • Stayed at: B017, Loop: FLAT
it's very close to the road. I wanted that originally because It's right across the street from Mack's Inn and I was going to float Big Spring with them. But the campground is SO loud. Also, if you're going in the 2021 summer season the camp host is kind of annoying. I knew there were fire restrictions in place because I researched and called the visitor center- they are allowed in developed campgrounds and inside the designated fire ring. He told us that it could not be above the fire ring, I had a single log burning and he stopped to tell me it was too high. I think he should probably shovel his pit more if a single log is too high for him? It just seemed like he made this regulation up and he wouldn't leave us alone. I was visited by him every evening at dinner time and other times aside from that. I just wanted to be left alone while I was camping. He did keep everything clean but I'd rather a dirty pit toilet if it means I can camp in peace.
Sarah S
VerifiedJuly 25, 2021 • Stayed at: B017, Loop: FLAT
it's very close to the road. I wanted that originally because It's right across the street from Mack's Inn and I was going to float Big Spring with them. But the campground is SO loud. Also, if you're going in the 2021 summer season the camp host is kind of annoying. I knew there were fire restrictions in place because I researched and called the visitor center- they are allowed in developed campgrounds and inside the designated fire ring. He told us that it could not be above the fire ring, I had a single log burning and he stopped to tell me it was too high. I think he should probably shovel his pit more if a single log is too high for him? It just seemed like he made this regulation up and he wouldn't leave us alone. I was visited by him every evening at dinner time and other times aside from that. I just wanted to be left alone while I was camping. He did keep everything clean but I'd rather a dirty pit toilet if it means I can camp in peace.
Marty W
VerifiedJuly 28, 2021 • Stayed at: B007, Loop: FLAT
Nice clean campground no showers and no water at each campsite
Marty W
VerifiedJuly 28, 2021 • Stayed at: B007, Loop: FLAT
Nice clean campground no showers and no water at each campsite
Elmer F
VerifiedAugust 15, 2021 • Stayed at: B014, Loop: FLAT
Awesome campground , close to all recreational activities.
Elmer F
VerifiedAugust 15, 2021 • Stayed at: B014, Loop: FLAT
Awesome campground , close to all recreational activities.
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.
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.
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.
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
