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Water

Established Camping

Flat Rock (idaho)

Flat Rock, near Island Park, Idaho, is a solid choice for campers looking to enjoy the great outdoors with a few comforts. This spot offers electric hookups and picnic tables, making it easy to settle in and enjoy your stay.

The campground is clean and well-maintained, with friendly hosts who go the extra mile to ensure everyone has a good time. Visitors have mentioned the close proximity to a beautiful stream and the stunning night sky, perfect for stargazing after a day of adventure.

You’ll find plenty of activities nearby, from fishing and floating on the river to hiking and mountain biking. Some campers have even extended their stays because they loved it so much. Just keep in mind that while the campground is conveniently located off Highway 20, you might hear some traffic noise, but it’s generally tolerable.

With a welcoming vibe and easy access to outdoor fun, Flat Rock is a great spot to kick back and enjoy nature. Whether you’re just passing through or planning a longer stay, you’ll find it hard to resist the charm of this campground.

Description

National Forest

Caribou-Targhee National Forest

Overview

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.

Recreation

Henry's Fork has great fly-fishing for rainbow and brook trout. The river's headwaters are at Big Springs, one of the nation's largest springs, just 4.5 miles from the campground. Tubing, canoeing, kayaking and rafting are also popular on the river. The Big Springs National Recreation Water Trail begins at Big Springs and ends just northeast of the campground at Macks Inn. It offers a lazy three-hour float or canoe trip through beautiful scenery. Wildlife, including moose, bald eagles and Sandhill cranes, is often seen along the trail. Hiking, biking, horseback riding and ATVing are popular activities. Many miles of trails crisscross Island Park, including the 2.5-mile Coffee Pot Rapids Trail, which begins at nearby Upper Coffee Pot Campground and meanders along the riverbank. The Continental Divide National Scenic Trail and the Nez Perce Trail are in the area. Island Park Reservoir and Henry's Lake are nearby, both offer boating, water skiing and excellent fishing opportunities.

Natural Features

Island Park is composed of two areas of extinct volcanic activity. The Henry's Fork Caldera sits inside the larger Island Park Caldera. The area is known for its dense forests of lodgepole pine, broad grassy meadows bursting with summer wildflowers and a wide variety of wildlife, including black and grizzly bears, moose, elk, deer, bald eagles, Sandhill cranes and much, much more. A mixed growth of lodgepole pine forest provides partial shade. A portion of one loop is fairly close to the river and some sites have river views.

Nearby Attractions

Mesa Falls Scenic Byway is 11 miles south of the campground. This 28-mile road leads to scenic overlooks and trails at 110 foot Upper Mesa Falls and 85 foot Lower Mesa Falls. Harriman State Park is 13 miles south. The Henry's Fork meanders through the Harriman, offering excellent fishing. Over 20 miles of trails are available, and wildlife is abundant in this scenic park. Henry's Lake State Park is 10 miles north, offering fishing, a fish cleaning station and boat ramp. Yellowstone National Park's west entrance is just 22 miles north in the town of West Yellowstone, Montana. Visitors enjoy day-tripping to the park for unparalleled wildlife viewing and the beautiful and unique scenery.

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Location

Flat Rock (idaho) is located in Idaho

Detail location of campground

Directions

From West Yellowstone, Montana, take U.S. Highway 20 south for 22 miles, or from Ashton, Idaho, take U.S. Highway 20 north for 30 miles. The campground entrance is 1/4 mile south of Macks Inn on the west side of the highway.

Address

HIGHWAY 20
Island park, ID 83429

Coordinates

44.4969444 N
111.34 W

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Access

  • Drive-In
    Park next to your site
  • Walk-In
    Park in a lot, walk to your site.
  • Hike-In
    Backcountry sites.
  • Boat-In
    Sites accessible by watercraft.

Stay Connected

  • WiFi
    Good
  • Verizon
    Unknown
  • AT&T
    Unknown
  • T-Mobile
    Good

Site Types

  • Tent Sites
  • RV Sites
  • Standard (Tent/RV)
  • Group
  • Cabins
  • Tent Cabin

Features

For Campers

  • Market
  • Trash
  • Picnic Table
  • Firewood Available
  • Phone Service
  • Reservable
  • WiFi
  • Drinking Water
  • Electric Hookups
  • Toilets
  • Alcohol
  • Fires

For Vehicles

  • Sanitary Dump
  • 50 Amp Hookups
  • Big Rig Friendly

Reviews

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5.0

out of 5

8 Reviews

Reviewed Aug. 9, 2023

Great spot

We pulled in and was greeted right away by the camp host who directed us to an open spot. We had a site with an electric hook up for $26 a night. Spot was great and very clean with bathrooms close by. We fit our 33’ pull behind easily. Close to the main road so you can hear traffic but it was tolerable!

Site8
Month of VisitAugust
  • Review photo of Flat Rock (idaho) by Brianna W., August 9, 2023
  • Review photo of Flat Rock (idaho) by Brianna W., August 9, 2023
  • Review photo of Flat Rock (idaho) by Brianna W., August 9, 2023
  • (4) View All
Reviewed Jun. 27, 2021

Beautiful Stream, but Noisy

Nice campground with 20 spots. Not full on Sunday. Close to US 20 and Henry’s Fork. No UTV-Off-road vehicles.

SiteA9
Month of VisitJune
  • Review photo of Flat Rock (idaho) by Jonathan , June 27, 2021
  • Review photo of Flat Rock (idaho) by Jonathan , June 27, 2021
  • Review photo of Flat Rock (idaho) by Jonathan , June 27, 2021
  • (5) View All
Reviewed Jun. 12, 2021

Loved this place

We loved it here so much we stayed 3 extra days. One near encounter with a bear. Beautiful night sky. Easy access to the river. So clean. Hosts were the best hosts I have ever encountered. After a brief (10 min) rain/thunderstorm, host went and checked on everyone. Bathrooms cleaned daily. Very quiet. Got 2 wonderful daytime naps. Only 35 minute drive to Yellowstone entrance. Definitely coming back!! 100%

SiteA15
Month of VisitJune
  • Review photo of Flat Rock (idaho) by Jeremiah H., June 12, 2021
  • Review photo of Flat Rock (idaho) by Jeremiah H., June 12, 2021
  • Review photo of Flat Rock (idaho) by Jeremiah H., June 12, 2021
  • (5) View All
Reviewed Aug. 26, 2020

PERFECT SPOT

Its right of Hwy 20 easy In and Out...Perfect Campground for staying overnight going to or leaving Yellowstone...We paid $17 for 1 night with electric & water...No Dump Station..No Showers..Picnic Tables & Fire Rings available on each site...Host sells wood for $6 a bundle...and extremely friendly & welcoming..Have fun & Safe Travels!

  • Review photo of Flat Rock (idaho) by Bebe R., August 26, 2020
  • Review photo of Flat Rock (idaho) by Bebe R., August 26, 2020
  • Review photo of Flat Rock (idaho) by Bebe R., August 26, 2020
Reviewed Jul. 17, 2018

One of my favorites! Take it from a religious camper

This is a busy campground. It is perfect for floating, fly fishing, and ATV riders. I even got some good mountain biking in. There is a canoe/float rental right next door. Despite all the activity - the sites feel more secluded than most camp grounds and are nothing less than relaxing! No showers but there are bear boxes every couple of spots and running water. Pit toliets and we paid $15/night. Only planned on staying one night - ended up staying two!

Month of VisitJuly
  • Review photo of Flat Rock (idaho) by Haylea A., July 17, 2018
  • Review photo of Flat Rock (idaho) by Haylea A., July 17, 2018
Reviewed May. 2, 2018

Nice spot

Just spend your time exploring. You'll be happy wherever you go.

Month of VisitAugust
  • Review photo of Flat Rock (idaho) by Kelli D., May 2, 2018
  • Review photo of Flat Rock (idaho) by Kelli D., May 2, 2018
  • Review photo of Flat Rock (idaho) by Kelli D., May 2, 2018
  • (4) View All
Reviewed Jul. 29, 2016

Awesome campsite

This site was so empty. This site was really great and you had your own privacy. The site came with electric hookups, tables and a fire ring. the restroom is very clean and has a shower. We stayed at site 8 and the table and rings looked pretty new. It seemed like the site is not used often. Firewood is very hard to find out here and I recommend bringing your own supply. At night the temperature drops dramatically and i recommend bringing a down jacket or just extra layers. Near the campsite is a river and there is people from other camps fly fishing for trout. The river is your only source of water and you should boil it because there my be giardia. In the morning I recommend going to Mesa falls which is about a 20 minute drive from the site and it is so beautiful.

  • Review photo of Flat Rock (idaho) by phillip L., July 29, 2016
  • Review photo of Flat Rock (idaho) by phillip L., July 29, 2016
  • Review photo of Flat Rock (idaho) by phillip L., July 29, 2016
  • (10) View All

Frequently Asked Questions

  • Does Flat Rock (idaho) have RV hookups?

    According to TheDyrt.com, Flat Rock (idaho) has 50 amp electric hookups.

  • What is the max vehicle length at Flat Rock (idaho)?

    Flat Rock (idaho) allows vehicles up to 65 feet.

  • Are fires allowed at Flat Rock (idaho)?

    Yes, according to campers on TheDyrt.com, fires are allowed at Flat Rock (idaho), although make sure to check current fire restrictions in the area.

  • Does Flat Rock (idaho) have wifi?

    Yes, according to campers on TheDyrt.com, Flat Rock (idaho) does have wifi.

  • Is there cell phone reception at Flat Rock (idaho)?

    According to campers on TheDyrt.com, Verizon signal is unknown, AT&T is unknown, and T-Mobile is good.

  • How hard is it to get a campsite at Flat Rock (idaho)?

    Some campers book as far as 6 months in advance, so on high-demand weekends it can be very difficult to get a campsite at Flat Rock (idaho). If you want to get a last-minute campsite at Flat Rock (idaho), try setting up a text message Alert atTheDyrt.com/alerts

  • Why is it so hard to get a campsite at Flat Rock (idaho)?

    There are 40 campsites at Flat Rock (idaho) and over 80 million Americans who camp! Try snagging a cancellation by setting up a text message Alert atTheDyrt.com/alerts