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188 reviews
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.
Based on guest feedback
4.3
Based on 188 reviews
Showing 188 reviews
July 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.
Helpful
July 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.
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July 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.
Helpful
July 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.
Helpful
July 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.
Helpful
August 4, 2025 Stayed at: B011, Loop: FLAT
Perfect stay. Everything went perfect and campsite was beautiful
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August 4, 2025 Stayed at: B011, Loop: FLAT
Perfect stay. Everything went perfect and campsite was beautiful
Helpful
August 17, 2025 Stayed at: B013, Loop: FLAT
Great place, large sites
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August 17, 2025 Stayed at: B013, Loop: FLAT
Great place, large sites
Helpful
August 25, 2025 Stayed at: B011, Loop: FLAT
Camp host very welcoming and talkative. Camp is kept neat and organized
Helpful
Highway 20, Island Park, ID 83429 United States
Elevation: 1,962 ft
From West Yellowstone, Montana, take U.S. Highway 20 south for 22 mi, or from Ashton, Idaho, take U.S. Highway 20 north for 30 mi. The campground entrance is 1/4 mi 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.
The closest entrance is: West Entrance
Approximate drive: 20.2 mi · 35 min
Last updated: October 24, 2026
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Population: 170
Nearby city: Idaho Falls, ID
Approx. 78 mi away (straight-line distance)
Elevation: 6,289 ft
Island Park, ID
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