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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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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
Mitch B
VerifiedAugust 4, 2025 • Stayed at: B011, Loop: FLAT
Perfect stay. Everything went perfect and campsite was beautiful
Mitch B
VerifiedAugust 4, 2025 • Stayed at: B011, Loop: FLAT
Perfect stay. Everything went perfect and campsite was beautiful
Jack A
VerifiedJuly 30, 2025 • Stayed at: B007, Loop: FLAT
We love this campground and go there every year and sometimes twice. This year we are going again. I was very disappointed. The garbage was full and not cleared for the time we were there - Mon - Wed.
The campground hostess was not pleasant. In fact, I thought she was very rude to us a number of times. My husband approached her about paying for the extra car we had and before he could say anything she flew into him about not having extra vehicles, which we knew, and were happy to pay for. We had my mother [87 yrs] so took our truck to pull the camper and a car to travel around in to accommodate her. That was not a good start.
She brought us the info on bears and I explained that we were aware of the rules, as we had camped there every year. I said we would not leave anything in the tent or out from meals. Her comment - well you better not.
On leaving, I went to ask her about the garbage again so we could dump before we left and she said - can't you see - it is still locked. We had thought we had heard the dump being emptied and I mentioned that and she bit back at me again.
Before pulling off, I suggested she try being polite and pleasant to people using the park. As I pulled off, she shouted something else to me.
I was very disappointed - and then realized I had to go back in September!!!!
We have never had a rude camp host like this in any of the campgrounds. They are usually pleasant and helpful. I am sorry that I have to write this negative review - and as I said - I'm not looking forward to going back.
Jack A
VerifiedJuly 30, 2025 • Stayed at: B007, Loop: FLAT
We love this campground and go there every year and sometimes twice. This year we are going again. I was very disappointed. The garbage was full and not cleared for the time we were there - Mon - Wed.
The campground hostess was not pleasant. In fact, I thought she was very rude to us a number of times. My husband approached her about paying for the extra car we had and before he could say anything she flew into him about not having extra vehicles, which we knew, and were happy to pay for. We had my mother [87 yrs] so took our truck to pull the camper and a car to travel around in to accommodate her. That was not a good start.
She brought us the info on bears and I explained that we were aware of the rules, as we had camped there every year. I said we would not leave anything in the tent or out from meals. Her comment - well you better not.
On leaving, I went to ask her about the garbage again so we could dump before we left and she said - can't you see - it is still locked. We had thought we had heard the dump being emptied and I mentioned that and she bit back at me again.
Before pulling off, I suggested she try being polite and pleasant to people using the park. As I pulled off, she shouted something else to me.
I was very disappointed - and then realized I had to go back in September!!!!
We have never had a rude camp host like this in any of the campgrounds. They are usually pleasant and helpful. I am sorry that I have to write this negative review - and as I said - I'm not looking forward to going back.
Michael L
VerifiedJuly 21, 2025 • Stayed at: B010, Loop: FLAT
Our experience was made special through the suburb campground host, Annie. Her conscientiousness and care for people is exceptional.
Michael L
VerifiedJuly 21, 2025 • Stayed at: B010, Loop: FLAT
Our experience was made special through the suburb campground host, Annie. Her conscientiousness and care for people is exceptional.
Christi L
VerifiedJuly 18, 2025 • Stayed at: B013, Loop: FLAT
Great location for shade and close to the river for cooling off in the summer. Lot's of activities all around. Close proximity to Yellowstone National Park was a key factor for our group. Go early in the morning for the busy season or you have to wait in line just to get into the park.
Camp has a fair amount of road noise due to close proximity of the highway, but very tolerable.
Christi L
VerifiedJuly 18, 2025 • Stayed at: B013, Loop: FLAT
Great location for shade and close to the river for cooling off in the summer. Lot's of activities all around. Close proximity to Yellowstone National Park was a key factor for our group. Go early in the morning for the busy season or you have to wait in line just to get into the park.
Camp has a fair amount of road noise due to close proximity of the highway, but very tolerable.
Sarah J
VerifiedJuly 10, 2025 • Stayed at: B011, Loop: FLAT
Excellent campground! The camp host Annie is wonderful! Bathrooms were the cleanest around. We will definitely be back!
Sarah J
VerifiedJuly 10, 2025 • Stayed at: B011, Loop: FLAT
Excellent campground! The camp host Annie is wonderful! Bathrooms were the cleanest around. We will definitely be back!
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
