FLAT ROCK (IDAHO)
FLAT ROCK (IDAHO)
FLAT ROCK (IDAHO)
FLAT ROCK (IDAHO)
FLAT ROCK (IDAHO)

Featured amenities

Parking Parking
Restrooms Restrooms

About Flat Rock (Idaho)

Flat Rock Campground is located 22 mi south of West Yellowstone, Montana and 30 mi north of Ashton, Idaho in beautiful Island Park, Idaho. Flat Rock is adjacent to U.S. Highway 20 and the Henry's Fork of the Snake River at an elevation of 6.4 ft.

Available sites

37 total sites

Activities & Attractions

Nearby

Fishing

Fishing

Year-round
Hiking

Hiking

Year-round

Seasonal information

2026 (Current year)

2026 Season availability

Current season
Upcoming seasons
Past seasons
Closed periods
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Currently closed

Campground Amenities

Most popular amenities

Parking Parking
Restrooms Restrooms
Water and Hygiene

Water and Hygiene

  • Restrooms
Parking and Transport

Parking and Transport

  • Parking
Missing information?

Rates, Sites & Availability

Select check-in and check-out dates to see real-time availability for each site.

37 Sites Available

Site
Price
🚐 B005, Loop: FLAT RV
50 amp · Gravel · Driveway entry: Back-In
🚐 B006, Loop: FLAT RV
50 amp · Gravel · Driveway entry: Back-In
🚐 B007, Loop: FLAT RV
50 amp · Gravel · Driveway entry: Back-In
🚐 B008, Loop: FLAT RV
50 amp · Gravel · Driveway entry: Back-In
🚐 B009, Loop: FLAT RV
50 amp · Gravel · Driveway entry: Back-In
🚐 B010, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B011, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B012, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B013, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B014, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B015, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B016, Loop: FLAT RV
Gravel · Driveway entry: Back-In
🚐 B017, Loop: FLAT RV
Gravel · Driveway entry: Back-In
⛺ XXX1, Loop: MANAGEMENT SITES Tent
⛺ XXX10, Loop: MANAGEMENT SITES Tent
⛺ XXX11, Loop: MANAGEMENT SITES Tent
⛺ XXX12, Loop: MANAGEMENT SITES Tent
⛺ XXX13, Loop: MANAGEMENT SITES Tent
⛺ XXX14, Loop: MANAGEMENT SITES Tent
⛺ XXX15, Loop: MANAGEMENT SITES Tent
⛺ XXX16, Loop: MANAGEMENT SITES Tent
⛺ XXX17, Loop: MANAGEMENT SITES Tent
⛺ XXX18, Loop: MANAGEMENT SITES Tent
⛺ XXX19, Loop: MANAGEMENT SITES Tent
⛺ XXX2, Loop: MANAGEMENT SITES Tent
⛺ XXX20, Loop: MANAGEMENT SITES Tent
⛺ XXX21, Loop: MANAGEMENT SITES Tent
⛺ XXX22, Loop: MANAGEMENT SITES Tent
⛺ XXX23, Loop: MANAGEMENT SITES Tent
⛺ XXX24, Loop: MANAGEMENT SITES Tent
⛺ XXX3, Loop: MANAGEMENT SITES Tent
⛺ XXX4, Loop: MANAGEMENT SITES Tent
⛺ XXX5, Loop: MANAGEMENT SITES Tent
⛺ XXX6, Loop: MANAGEMENT SITES Tent
⛺ XXX7, Loop: MANAGEMENT SITES Tent
⛺ XXX8, Loop: MANAGEMENT SITES Tent
⛺ XXX9, Loop: MANAGEMENT SITES Tent

Reviews

188 reviews

Summary

AI generated

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

Overall rating

Based on 188 reviews

Write a review
5 stars 57.4% (108)
4 stars 25.0% (47)
3 stars 9.0% (17)
2 stars 3.7% (7)
1 star 4.8% (9)

Showing 188 reviews

Carter M

Verified

August 17, 2025 Stayed at: B013, Loop: FLAT

Great place, large sites

Helpful

Mitch B

Verified

August 4, 2025 Stayed at: B011, Loop: FLAT

Perfect stay. Everything went perfect and campsite was beautiful

Helpful

Mitch B

Verified

August 4, 2025 Stayed at: B011, Loop: FLAT

Perfect stay. Everything went perfect and campsite was beautiful

Helpful

Jack A

Verified

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

Jack A

Verified

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

Michael L

Verified

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

Michael L

Verified

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

Christi L

Verified

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

Christi L

Verified

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

Sarah J

Verified

July 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!

Helpful

Location & Directions for Flat Rock (Idaho)

Highway 20, Island Park, ID 83429 United States

Elevation: 1,962 ft

Getting There

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.

Nearest town

Island Park, ID - 5.4 mi

About 6 min to downtown

Highway access

The campground is accessible via U.S. Highway 20, which runs north and south with connections to West Yellowstone, Montana, and Ashton, Idaho.

Near Yellowstone National Park

The closest entrance is: West Entrance

Approximate drive: 20.2 mi · 35 min

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: October 24, 2026

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Explore Island Park, ID

Population: 170

Nearby city: Idaho Falls, ID

Approx. 78 mi away (straight-line distance)

Elevation: 6,289 ft

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