Flat Rock (Idaho)

Highway 20, Island Park, Idaho, United States
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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
RV Sites 13 sites Check Availability Tent Sites 24 sites Check Availability

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

Verified Only
Sort by: Newest First
Newest First Oldest First

Jack A

Verified

January 15, 2020 Stayed at: B008, Loop: FLAT

The camp ground is a five star rating; however, it is located next to (100 ft) the main highway between West Yellowstone, MT and Ashton, Idaho. You hear all the traffic noise...all the time. There is a small highway grade passing the campground and the semi-trucks are giving the diesel pedal all they have. Upper Coffee Pot campground is 1 1/2 mi away and is better IF YOU CAN GET RESERVATIONS six months in advance! I mean SIX MONTHS to the day because people starting calling as soon as reservations open. If you don't mind the road noise, Flat Rock is a great place to stay and close enough to Yellowstone Park without taking your banker with you on your trip...20 minute drive to Yellowstone. Cheaper than West Yellowstone and Yellowstone National Park.

Helpful

Dalton C

Verified

January 15, 2020 Stayed at: B015, Loop: FLAT

The camp hosts were friendly and the facilities were clean. Though near the highway, it was quiet and peaceful. The campsite was cleaned and raked before we arrived.

Helpful

Jack A

Verified

January 15, 2020 Stayed at: B008, Loop: FLAT

The camp ground is a five star rating; however, it is located next to (100 ft) the main highway between West Yellowstone, MT and Ashton, Idaho. You hear all the traffic noise...all the time. There is a small highway grade passing the campground and the semi-trucks are giving the diesel pedal all they have. Upper Coffee Pot campground is 1 1/2 mi away and is better IF YOU CAN GET RESERVATIONS six months in advance! I mean SIX MONTHS to the day because people starting calling as soon as reservations open. If you don't mind the road noise, Flat Rock is a great place to stay and close enough to Yellowstone Park without taking your banker with you on your trip...20 minute drive to Yellowstone. Cheaper than West Yellowstone and Yellowstone National Park.

Helpful

Dalton C

Verified

January 15, 2020 Stayed at: B015, Loop: FLAT

The camp hosts were friendly and the facilities were clean. Though near the highway, it was quiet and peaceful. The campsite was cleaned and raked before we arrived.

Helpful

Geri K

Verified

January 11, 2020 Stayed at: B016, Loop: FLAT

Great campground with easy access to area lakes and rivers. Walking distance to the river. Clean with lots of room for trailers or tents. Loved it! Will return.

Helpful

Geri K

Verified

January 11, 2020 Stayed at: B016, Loop: FLAT

Great campground with easy access to area lakes and rivers. Walking distance to the river. Clean with lots of room for trailers or tents. Loved it! Will return.

Helpful

Sherri Y

Verified

December 23, 2019 Stayed at: B007, Loop: FLAT

Convenient location next to highway 20. Great camp hosts. Super friendly.

Helpful

Sherri Y

Verified

December 23, 2019 Stayed at: B007, Loop: FLAT

Convenient location next to highway 20. Great camp hosts. Super friendly.

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

Yellowstone RV Park at Macks Inn

Campground / RV park

Yellowstone RV Park at Macks Inn

Island Park, ID
5.0 (5)
Upper Coffee Pot
Closed for Season

Campground / RV park

Upper Coffee Pot

Island Park, ID

Upper Coffee Pot Campground is situated in Island Park, Idaho, at an elevation of 6.3 ft along the Henry's Fork of the Snake River. It offers excellent fishing, stunning scenery, and diverse wildlife viewing. The campground provides a scenic and r...

4.6 (59)
Yellowstone Adventure RV

Campground / RV park

Yellowstone Adventure RV

Island Park, ID
4.0 (5)

Nearby destinations

Explore destination

Island Park

5 mi away

Day trip
Explore destination

West Yellowstone

16 mi away

City
Explore destination

Ashton

30 mi away

Day trip

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

Learn more about Island Park

From our Travel Guides

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