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Map data © OpenStreetMap contributors. Activities powered by Viator. Prices and availability come from each provider and are confirmed when you book with them.

  1. Home
  2. Idaho
  3. Island Park
  4. Flat Rock (Idaho)

Camping at Flat Rock (Idaho) near Island Park

Public campground · Island Park · 16 campsites

A forested campground near trout fishing, hiking, and mountain biking. Most campsites have no hookups, and RV fit varies by site.

About this campground

S. Highway 20 at about 6,400 feet in Island Park, roughly 22 miles south of West Yellowstone, Montana and 30 miles north of Ashton, Idaho.

4.0 on Recreation.gov · 75 reviewsBook on Recreation.gov
View all 6 photos

At a glance

  • RV sites up to 65 ft

    Length limits vary by campsite.

  • Mostly no hookups

    Limited electric sites.

  • Pets not allowed
  • Public land
OverviewCampsitesAmenities & locationReviewsPlan your stay

0 available sites

0 open of 16 sites
No sites offered for these dates.

We checked every night of your stay on Recreation.gov: no site is open for all 2 nights. Some sites are open on some nights.

Flexible dates

View the next available two-night stay.

Looking for the next open dates…
Fixed dates

Compare nearby campgrounds open for these dates. Your camping setup, rig size, hookups and dates stay applied.

Nearby campgrounds open for these dates
Check Recreation.gov directly ↗
View full availability calendar · night-by-night from Recreation.gov

Check dates on Recreation.gov.

SiteFr
13
Sa
14
Price
B013
standard nonelectric
––$25
B010
standard nonelectric
––$25
B004
standard nonelectric
––$25
B011
standard nonelectric
––$25
B015
standard nonelectric
––$25
B017
standard nonelectric
––$25
B012
standard nonelectric
––$25
B003
standard nonelectric
––$25
B014
standard nonelectric
––$25
B016
standard nonelectric
No site is open for every night of your stay

You book directly on Recreation.gov. Rates and availability can change until reserved. Campground page on Recreation.gov ↗

No sites offered for these dates
Book on Recreation.gov

Amenities & location

Check-in
2:00 PM
Checkout
12:00 PM
Pets
Pets not allowed
Maximum stay
14 nights

Hookups (individual campsites): 6 electric, 10 no-hookup individual sites.

Location

HIGHWAY 20
Open in Google Maps ↗

Flat Rock (Idaho): questions answered

What is the maximum RV length at Flat Rock (Idaho)?
Longest RV site listed: 65 ft (16 of 16 RV sites list a length) (per the listing)
Does Flat Rock (Idaho) have RV hookups?
6 electric, 10 no-hookup individual sites (per the listing)
How do I reserve a site at Flat Rock (Idaho)?
Reservable on Recreation.gov (per the listing)
Sources and details

At a glance

Official facts link to their source; “Listing” facts come from the Recreation.gov listing. Anything we can't source says so.

Max rig length
Listing Longest RV site listed: 65 ft (16 of 16 RV sites list a length)
Hookups & power
Listing 6 electric, 10 no-hookup individual sites
Pull-through / back-in
Listing 0 pull-through, 16 back-in
Road & site access
Listing 16 gravel site driveways
Cell signal
Listing Visitor-reported signal on Recreation.gov (higher is better): Verizon 3 (27 reports), AT&T 2 (15 reports), T-Mobile 3 (8 reports)
Shade
Listing 7 of 14 sites that report shade are listed as shaded
Booking
Listing Reservable on Recreation.gov
Price
Listing Lowest listed rate $25/night (live price once you pick dates)
Stay limits
Listing 14 nights max
Getting there
Listing HIGHWAY 20 (map in Location below)
Pets · Generators · Quiet hours · Starlink / satellite · Water
Not listed — check with campground

Reviews

Selected reviews

Verbatim from guest reviews on Recreation.gov ↗ (75 reviews, ★ 4.0). Not written or edited by us.

“Clean campground I’ve been to many times and usually enjoy. The host this year was just rude multiple times and ruined the entire experience. Will probably not be back. ”

Austin J 1 · Sep 2025 · Recreation.gov

“Nice level long campsites. Shady, limited cellular. Camp host keeps things clean, but is very bear aware, so very anxious about materials outside your camper. As others have mentioned, road noise is significant.”

Brent B 4 · Sep 2025 · Recreation.gov

“Stinky bathrooms, bad but other than that, a nice place to stay.”

Kelli O 3 · Sep 2025 · Recreation.gov
Nearby

Campgrounds to compare

Prefer a roof?

Prefer a roof over your head

All glamping →
  • Yellowstone RV Park at Macks Inn0.1 mi · Island Park
  • Red Rock RV Park8.3 mi · Island Park
  • Yellowstone Holiday22 mi · West Yellowstone
  • Eagle Peak Lodge & Cabins29.3 mi · Ashton

Explore nearby

  • Campgrounds near Island Park
  • RV rentals near Island Park
  • Glamping & cabins near Island Park
  • RV rentals in Idaho
  • Glamping in Idaho

Guides for this trip

  • How much does it cost to rent an RV?
  • Camping with dogs
–
–
$25
B002
standard electric
––$31
B007
standard electric
––$31
B008
standard electric
––$31
B006
standard electric
––$31
B005
standard electric
––$31
B009
standard electric
––$62

✓ available · R reserved · X not available · C closed · W first come, first served · N not yet released

Available Nov 13–15 · 2 nights16 sites open for every night

Yellowstone RV Park at Macks Inn

0.1 mi from Flat Rock (Idaho) (straight-line)
Sites from $68/night
$136 total for Nov 13–15 · before taxes & fees
Rates & availability from Campspot · you book on their site
View Campsites
Available Nov 13–15 · 2 nights3 sites open for every night

Camp Steelhead

3.8 mi from Flat Rock (Idaho) (straight-line)
Sites from $87/night
$175 total for Nov 13–15 · before taxes & fees
Rates & availability from Hipcamp · you book on their site
View Campsites
Check availability

Big Springs Grp. Area - Island Park

4.2 mi from Flat Rock (Idaho) (straight-line) 4.0 · 4 Recreation.gov reviews
Tent sites · RV sites
Recreation.gov doesn't share live availability with us; check dates on their siteSites from $75/night
Booked on Recreation.gov
View Campsites
Trip idea

Ideas for your stay

An idea to start from, built from this campground's listing and real tours nearby. Times, openings and prices change, so check each before you go.

  1. Day 1 · Arrive and settle in

    • Check in and set up camp.
    • fish for trout (per the campground listing)
  2. Day 2 · Get out and explore

    • Private Yellowstone Tour: ICONIC Sites, Wildlife, Family Friendly Hikes + lunch 16 mi · 7 hr–9 hr · from $2200/person
    • Lower Loop Van Tour from West Yellowstone: Grand Prismatic and Old Faithful 16 mi · 8 hr · from $292/person
  3. Optional full-day extension

    Longer tours — plan travel time before and after.

    • Full Day Private Tour and Hike from West Yellowstone 16 mi · 6 hr–8 hr · from $851/person
Ways to stay

Bring a tent or have an RV waiting

  • Tent camping here: 16 sites take tents. See open sites ↑
  • Electric sites: 6 sites have power.

Need an RV for your stay?

Rentals that may deliver here and whose listed length fits sites up to 65 ft. Delivery may be available — confirm fees and dates with the owner before you book.

2021 Braxton Creek Bushwhacker
2021 Braxton Creek Bushwhacker

Travel trailer · 13 ft · sleeps 4 · 16 mi from campground

$95/night listed · Outdoorsy · Delivery may be available

View rental
2022 Forest River Tracer LE
2022 Forest River Tracer LE

Travel trailer · 29 ft · sleeps 10 · 30 mi from campground

$115/night listed · Outdoorsy · Delivery may be available

View rental
Ten for Ten Camping Trailer
Ten for Ten Camping Trailer

Travel trailer · 32 ft · sleeps 10 · 44 mi from campground

$110/night listed · Outdoorsy · Delivery may be available

View rental
Things to do

Activities near Flat Rock (Idaho)

Bookable tours nearby

Paid experiences on Viator. Distances are from this campground when the tour lists its own start point.

Private Yellowstone Tour: ICONIC Sites, Wildlife, Family Friendly Hikes + lunch
Private Yellowstone Tour: ICONIC Sites, Wildlife, Family Friendly Hikes + lunch

16 mi · 7 hr–9 hr · from $2200/person

Lower Loop Van Tour from West Yellowstone: Grand Prismatic and Old Faithful
Lower Loop Van Tour from West Yellowstone: Grand Prismatic and Old Faithful

16 mi · 8 hr · from $292/person

Full Day Private Tour and Hike from West Yellowstone
Full Day Private Tour and Hike from West Yellowstone

16 mi · 6 hr–8 hr · from $851/person

See 6 more bookable tours
Upper Loop Tour and Lamar Valley from West Yellowstone with Lunch
Best time to go

Seasons, rates and how booked it gets

  • Peak season May 22–Sep 15: RV & Tent $25–$62 per night

stays up to 14 nights (Recreation.gov rules).

Plan your stay

How far ahead to book Flat Rock (Idaho)

For July weekends, book about 175 days ahead. Three in four July Friday and Saturday arrivals were booked later than that, and half were booked 121 days or less before arrival. Past timing is guidance, not a guarantee of what is open now.

See booking patterns
Arrival monthFri/Sat arrivals: half booked at leastA quarter at leastOther days: half booked at leastA quarter at least
May77 days ahead123 days ahead33 days ahead76 days ahead
June64 days ahead146 days ahead84 days ahead149 days ahead
July121 days ahead175 days ahead111 days ahead178 days ahead
August52 days ahead162 days ahead60 days ahead157 days ahead
September44 days ahead141 days ahead38 days ahead102 days ahead

Months with fewer than 30 reservations of that kind are left blank. Sites where nearly every booking was made the day of arrival (pay on arrival) are left out. Closed seasons, windows not yet released for booking, and currently unavailable nights are separate from this history.

Based on Recreation.gov reservations, FY2015–2025 (3,544 reservations in the years scored). Counts reservations made, not nights actually camped: cancellations aren't in the data, and nights a site was closed count as not booked. FY2020–21 (COVID) are left out of the scores.

Upper Loop Tour and Lamar Valley from West Yellowstone with Lunch

16 mi · 8 hr · from $292/person

Full-Day Guided Yellowstone Day Tour
Full-Day Guided Yellowstone Day Tour

37 mi · 10 hr–11 hr · from $269/person

Grand Canyon of the Yellowstone Rim and Loop Hike with Lunch
Grand Canyon of the Yellowstone Rim and Loop Hike with Lunch

37 mi · 6 hr · from $182/person

Kayak Day Paddle on Yellowstone Lake
Kayak Day Paddle on Yellowstone Lake

37 mi · 5 hr · from $200/person

4-Hour Kayak on Yellowstone Lake with Lunch
4-Hour Kayak on Yellowstone Lake with Lunch

37 mi · 4 hr · from $127/person

Lamar Valley Safari Hiking Tour with Lunch
Lamar Valley Safari Hiking Tour with Lunch

37 mi · 6 hr · from $182/person

Compare site types

16 individual reservable campsites from Recreation.gov, checked Nov 8. Rates are the listed nightly rates.

Standard sites (tent or RV)

Tent, van or small RV, no power

10 sites · $25/night

0 open Nov 13–Nov 15

Standard sites with electric

Tent or RV, with power

6 sites · $31, $62/night

0 open Nov 13–Nov 15