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

Jim D

Verified

July 20, 2023 Stayed at: B011, Loop: FLAT

5

The camp hosts are great! Great location to Yellowstone, clean and nice campground and some of the cleanest vault toilets I’ve seen.

Heather L

Verified

July 11, 2023 Stayed at: B007, Loop: FLAT

4

This was a great campground. Beautiful, clean, spacious, the works. The only drawback was the road noise. Otherwise, amazing experience!

Charles C

Verified

June 30, 2023 Stayed at: B017, Loop: FLAT

5

Vaulted toilets were exceptionally clean. Hosts were very kind and took care of the sites very well. Extremely happy to have them there.

Lenn H

Verified

June 23, 2023 Stayed at: B010, Loop: FLAT

5

Campground hosts are awesome. Campground is immaculate

Ronald P

Verified

June 21, 2023 Stayed at: B011, Loop: FLAT

5

Camp Host Dan and Annie were great. Very kind, gracious and infomative. We will be back.

Joyce M

Verified

June 14, 2023 Stayed at: B013, Loop: FLAT

5

Great spot! Wonderful hosts! Hit some good weather too.

Joseph F

Verified

June 7, 2023 Stayed at: B005, Loop: FLAT

5

From the ease of check in, getting into the site and concrete pads, this has been one of the best RV sites we found on our journey. Having a BIG RIG (43' and tow) it was a pleasant trip.

Robert B

Verified

October 10, 2022 Stayed at: B008, Loop: FLAT

4

Very quiet and clean campground. Very friendly and knowledgeable campground host.

Theda T

Verified

September 8, 2022 Stayed at: B015, Loop: FLAT

5

We wanted to paddle the river with our canoes. The camp spots are very clean and accommodated our camper and canoe trailer perfectly. Wonderful experience.

Julie I

Verified

August 31, 2022 Stayed at: B016, Loop: FLAT

5

A-mazing place. I was told by a family member that the bathrooms are very clean. The camp hots were very attentive. We are looking forward to returning!

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.

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Nearby destinations