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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
37 Sites Available
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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
Josette J
VerifiedJuly 28, 2022 • Stayed at: B008, Loop: FLAT
Really clean campground, well maintained and the hosts are great! Sites are large a flat - only downside is the road.
Josette J
VerifiedJuly 28, 2022 • Stayed at: B008, Loop: FLAT
Really clean campground, well maintained and the hosts are great! Sites are large a flat - only downside is the road.
Michael L
VerifiedJuly 7, 2022 • Stayed at: B007, Loop: FLAT
The campground hosts were very friendly and helpful.
Michael L
VerifiedJuly 7, 2022 • Stayed at: B007, Loop: FLAT
The campground hosts were very friendly and helpful.
leon b
VerifiedJune 22, 2022 • Stayed at: B006, Loop: FLAT
The campground was great just all the rain and weather made it good
leon b
VerifiedJune 22, 2022 • Stayed at: B006, Loop: FLAT
The campground was great just all the rain and weather made it good
Tara G
VerifiedOctober 4, 2021 • Stayed at: B008, Loop: FLAT
Super nice spot. Great camp host. Will definitely visit again
Tara G
VerifiedOctober 4, 2021 • Stayed at: B008, Loop: FLAT
Super nice spot. Great camp host. Will definitely visit again
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
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
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
