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Parking
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About Flat Rock (Idaho)
Number of accommodations: 37
Nearby Activities & Attractions
Fishing
Hiking
Seasonal information
2026 Season availability
Campground Amenities
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Parking
Restrooms
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- Restrooms
Parking and Transport
- Parking
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Rates, Sites & Availability
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37 Sites Available
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Reviews (154)
What Guests Are Saying
Flat Rock in Island Park offers a great location with clean facilities and spacious, shaded campsites, making it ideal for a short stay. Many visitors appreciate the welcoming and attentive campground host, who maintains a neat environment and fosters a pleasant atmosphere. However, some guests have reported issues with rude interactions with the host and road noise from the nearby highway, which detracts from the experience.
What Guests Are Saying
Flat Rock in Island Park offers a great location with clean facilities and spacious, shaded campsites, making it ideal for a short stay. Many visitors appreciate the welcoming and attentive campground host, who maintains a neat environment and fosters a pleasant atmosphere. However, some guests have reported issues with rude interactions with the host and road noise from the nearby highway, which detracts from the experience.
Review Summary
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.
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.
Latitude & Longitude: 44.4969 / -111.34
Elevation: 1962 feet
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: June 4, 2026
