Featured amenities
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
Charles A
VerifiedAugust 12, 2024 • Stayed at: B005, Loop: FLAT
Excellent camp host and very clean
Charles A
VerifiedAugust 12, 2024 • Stayed at: B005, Loop: FLAT
Excellent camp host and very clean
Fred B
VerifiedJuly 17, 2024 • Stayed at: B005, Loop: FLAT
The site was clean, cared for and easy to get in and out of. The hosts were friendly and welcoming.
Jack A
VerifiedJuly 17, 2024 • Stayed at: B006, Loop: FLAT
Good Campground. Only 3 sites were used and the whole rest of the campground was available. This was not normal.
Fred B
VerifiedJuly 17, 2024 • Stayed at: B005, Loop: FLAT
The site was clean, cared for and easy to get in and out of. The hosts were friendly and welcoming.
Jack A
VerifiedJuly 17, 2024 • Stayed at: B006, Loop: FLAT
Good Campground. Only 3 sites were used and the whole rest of the campground was available. This was not normal.
Dave B
VerifiedJuly 10, 2024 • Stayed at: B015, Loop: FLAT
Not quiet at all
The highway is noisy all night
Dave B
VerifiedJuly 10, 2024 • Stayed at: B015, Loop: FLAT
Not quiet at all
The highway is noisy all night
Frank H
VerifiedSeptember 14, 2023 • Stayed at: B015, Loop: FLAT
We love this campground. The host is friendly and keeps the bathrooms nice and clean. She comes around to check on us. Ready access to Mack's Inn and the Big Spring area. 45 min from West Yellowstone.
Frank H
VerifiedSeptember 14, 2023 • Stayed at: B015, Loop: FLAT
We love this campground. The host is friendly and keeps the bathrooms nice and clean. She comes around to check on us. Ready access to Mack's Inn and the Big Spring area. 45 min from West Yellowstone.
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
