OutReserve

Flat Rock (IDAHO)

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

About Flat Rock (IDAHO)

Flat Rock Campground is located 22 miles south of West Yellowstone, Montana and 30 miles 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 6,400 feet.

Number of accommodations: 37

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 - Opens on May 22

Sites & Availability

37 Sites Available

Site
Price
🚐 B005, Loop: FLAT
50 Amp · Electric Only
$62.00
/ per night
🚐 B006, Loop: FLAT
50 Amp · Electric Only
$62.00
/ per night
🚐 B007, Loop: FLAT
50 Amp · Electric Only
$62.00
/ per night
🚐 B008, Loop: FLAT
50 Amp · Electric Only
$62.00
/ per night
🚐 B009, Loop: FLAT
50 Amp · Electric Only
$62.00
/ per night
🚐 B010, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B011, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B012, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B013, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B014, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B015, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B016, Loop: FLAT
No Hookups
$25.00
/ per night
🚐 B017, Loop: FLAT
No Hookups
$25.00
/ per night
XXX1, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX10, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX11, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX12, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX13, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX14, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX15, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX16, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX17, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX18, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX19, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX2, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX20, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX21, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX22, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX23, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX24, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX3, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX4, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX5, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX6, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX7, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX8, Loop: MANAGEMENT SITES
$30.00
/ per night
XXX9, Loop: MANAGEMENT SITES
$30.00
/ per night

Reviews (77)

What Guests Are Saying

Flat Rock Campground in Island Park offers a clean, well-maintained environment with a friendly camp host who is dedicated to keeping the area organized and safe. Many campers appreciate the beautiful, shaded sites and proximity to outdoor activities, including access to the Henry’s Fork and Yellowstone National Park. However, some visitors have expressed disappointment regarding the rudeness of the camp host and issues with cleanliness, such as overflowing garbage and bathroom conditions. Overall, it remains a popular choice for its location and amenities, despite some concerns.

Review Summary

4.4
77 reviews
5
59.7%
46
4
26.0%
20
3
7.8%
6
2
3.9%
3
1
2.6%
2

Mitch B

Verified

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

5

Perfect stay. Everything went perfect and campsite was beautiful

Jack A

Verified

July 30, 2025 Stayed at: B007, Loop: FLAT

1

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

Verified

July 21, 2025 Stayed at: B010, Loop: FLAT

5

Our experience was made special through the suburb campground host, Annie. Her conscientiousness and care for people is exceptional.

Christi L

Verified

July 18, 2025 Stayed at: B013, Loop: FLAT

4

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

Verified

July 10, 2025 Stayed at: B011, Loop: FLAT

5

Excellent campground! The camp host Annie is wonderful! Bathrooms were the cleanest around. We will definitely be back!

James M

Verified

July 4, 2025 Stayed at: B007, Loop: FLAT

2

The facilities were great and the campsite was clean. The one reason that I will never camp there anymore is your camp host was mean. Very rude. Every time I had an interaction with her and accusing when I had questions. I wasn’t the only one that had this experience. Everyone that was in our camp party had the same exact experience with this woman. If camp host were changed, I would consider going back, but until that woman is removed I will not be going back to that campsite.

Michael L

Verified

June 30, 2025 Stayed at: B005, Loop: FLAT

4

Good campground host.

Tracey S

Verified

June 23, 2025 Stayed at: B013, Loop: FLAT

5

We had a great time. The campground Hostess was ever-present (which is a good thing) and the campground was clean and beautiful. We saw lots of wildlife and enjoyed the serene beauty of the area. Thank you!

Lenn H

Verified

June 9, 2025 Stayed at: B009, Loop: FLAT

5

The campground host does a outstanding job of taking care of the campground as well as keeping track of the visitors. Clone her and put her is all the campgrounds

Allen W

Verified

September 9, 2024 Stayed at: B006, Loop: FLAT

4

Nice camp host

Location Flat Rock (IDAHO)

Address:
Highway 20
Island Park, ID, 83429
United States

Latitude & Longitude: 44.4969 / -111.34

Elevation: 1962 feet

Policies & Rules

Category About
General

Wildlife Caution

General

Idaho OHV Safety Message

General

A $7 fee for extra vehicles will be collected at the campground

General

No ATVs/OHVs allowed in the campground

General

This campground has first come, first served sites

General

Click here for more information on the Caribou-Targhee National Forest

General

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