Flat Rock (Idaho)

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

Featured amenities

Parking Parking
Restrooms Restrooms

Sites & Rates

Average nightly rates

37 total sites

RV Sites

13 sites

Tent Sites

24 sites

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

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 open - May 22 to Sep 15

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? Let us know

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 · Electric Only
Price not available
🚐 B006, Loop: FLAT RV
50 Amp · Electric Only
Price not available
🚐 B007, Loop: FLAT RV
50 Amp · Electric Only
Price not available
🚐 B008, Loop: FLAT RV
50 Amp · Electric Only
Price not available
🚐 B009, Loop: FLAT RV
50 Amp · Electric Only
Price not available
🚐 B010, Loop: FLAT RV
No Hookups
Price not available
🚐 B011, Loop: FLAT RV
No Hookups
Price not available
🚐 B012, Loop: FLAT RV
No Hookups
Price not available
🚐 B013, Loop: FLAT RV
No Hookups
Price not available
🚐 B014, Loop: FLAT RV
No Hookups
Price not available
🚐 B015, Loop: FLAT RV
No Hookups
Price not available
🚐 B016, Loop: FLAT RV
No Hookups
Price not available
🚐 B017, Loop: FLAT RV
No Hookups
Price not available
XXX1, Loop: MANAGEMENT SITES Tent
Price not available
XXX10, Loop: MANAGEMENT SITES Tent
Price not available
XXX11, Loop: MANAGEMENT SITES Tent
Price not available
XXX12, Loop: MANAGEMENT SITES Tent
Price not available
XXX13, Loop: MANAGEMENT SITES Tent
Price not available
XXX14, Loop: MANAGEMENT SITES Tent
Price not available
XXX15, Loop: MANAGEMENT SITES Tent
Price not available
XXX16, Loop: MANAGEMENT SITES Tent
Price not available
XXX17, Loop: MANAGEMENT SITES Tent
Price not available
XXX18, Loop: MANAGEMENT SITES Tent
Price not available
XXX19, Loop: MANAGEMENT SITES Tent
Price not available
XXX2, Loop: MANAGEMENT SITES Tent
Price not available
XXX20, Loop: MANAGEMENT SITES Tent
Price not available
XXX21, Loop: MANAGEMENT SITES Tent
Price not available
XXX22, Loop: MANAGEMENT SITES Tent
Price not available
XXX23, Loop: MANAGEMENT SITES Tent
Price not available
XXX24, Loop: MANAGEMENT SITES Tent
Price not available
XXX3, Loop: MANAGEMENT SITES Tent
Price not available
XXX4, Loop: MANAGEMENT SITES Tent
Price not available
XXX5, Loop: MANAGEMENT SITES Tent
Price not available
XXX6, Loop: MANAGEMENT SITES Tent
Price not available
XXX7, Loop: MANAGEMENT SITES Tent
Price not available
XXX8, Loop: MANAGEMENT SITES Tent
Price not available
XXX9, Loop: MANAGEMENT SITES Tent
Price not available

Reviews (177)

What Guests Are Saying

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.

Review Summary

4.3
177 reviews
5
58.8%
104
4
24.3%
43
3
8.5%
15
2
4.0%
7
1
4.5%
8

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.

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.

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!

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

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

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.

Elevation: 1962 feet

Distance to downtown

5.4 mi drive to downtown Island Park (about 6 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: September 6, 2026

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Managed by USDA Forest Service