Flat Rock (Idaho)

Highway 20, Island Park, Idaho, United States
Check Availability
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: Oldest First
Newest First Oldest First

Dave B

Verified

July 10, 2024 Stayed at: B015, Loop: FLAT

Not quiet at all
The highway is noisy all night

Helpful

Jack A

Verified

July 17, 2024 Stayed at: B006, Loop: FLAT

Good Campground. Only 3 sites were used and the whole rest of the campground was available. This was not normal.

Helpful

Fred B

Verified

July 17, 2024 Stayed at: B005, Loop: FLAT

The site was clean, cared for and easy to get in and out of. The hosts were friendly and welcoming.

Helpful

Jack A

Verified

July 17, 2024 Stayed at: B006, Loop: FLAT

Good Campground. Only 3 sites were used and the whole rest of the campground was available. This was not normal.

Helpful

Fred B

Verified

July 17, 2024 Stayed at: B005, Loop: FLAT

The site was clean, cared for and easy to get in and out of. The hosts were friendly and welcoming.

Helpful

Charles A

Verified

August 12, 2024 Stayed at: B005, Loop: FLAT

Excellent camp host and very clean

Helpful

Charles A

Verified

August 12, 2024 Stayed at: B005, Loop: FLAT

Excellent camp host and very clean

Helpful

Allen W

Verified

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

Nice camp host

Helpful

Allen W

Verified

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

Nice camp host

Helpful

Lenn H

Verified

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

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

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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