Sightseeing & food
| Location | Island Park, Idaho |
|---|---|
| Nightly rate (listed) | $25–$62/night |
| Guest rating | 4.0 / 5 (75 reviews) |
| Maximum RV length | 65 ft (longest listed site) |
| Hookups | electric |
| Electrical service | 50A |
| RV sites | 16 |
| Book on | Recreation.gov |
From the park's listing on Recreation.gov. Confirm details with the park before you book.
More Idaho RV parks with: Big Rig Sites · 50-Amp Service
Closest stays by type. Distances are straight-line from Flat Rock (Idaho), not driving.
Available Oct 30 – Nov 1 · 2 nights4 sites open for every night
Check dates on Campspot
Check dates on CampspotThis weekend · Not yet releasedRecreation.gov hasn't opened these dates yet
Flat Rock (Idaho) is a Recreation.gov campground in Island Park. It lists 16 RV or RV/tent sites for rigs up to 65 ft. 6 sites have electric.
Checking 2 nights (your saved dates or this weekend). Tell us what you're staying in to see matching sites and prices.
Availability checked Sep 15 on Recreation.gov. Rates are the provider's nightly rates; totals are estimates before taxes & fees.
You book with the provider. Each row shows that provider's lowest open option for your dates, and which provider our main button uses.
No recent availability data on Recreation.gov: this grid may be out of date, so check availability with the provider.
| Site | Fr 30 | Sa 31 | 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 | – | – | $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
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. ”
“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.”
“Stinky bathrooms, bad but other than that, a nice place to stay.”
This weekend (Fri, Oct 30 – Sun, Nov 1): Book online. Reservations online on Recreation.gov — open dates and rates come from the booking site.
Longest RV site listed: 65 ft. Unsure if your rig fits? Check it in the Rig Fit tool
HIGHWAY 20
Open in Google Maps ↗
Flat Rock Campground sits along U.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. The campground lies next to the Henry's Fork of the Snake River, with a mix of lodgepole pine and open meadows that open onto river views from some sites; the surrounding landscape is shaped by the Henry's Fork and Island Park calderas, so expect stands of pines, summer wildflowers in the meadows and frequent wildlife sightings everything from waterfowl and bald eagles to moose, elk and, in the broader area, both black and grizzly bears. Flat Rock is an excellent base for river-based recreation: the Henry's Fork is known for fly-fishing for rainbow and brook trout, Big Springs (one of the nation's largest springs) is just 4.5 miles upstream, and the Big Springs National Recreation Water Trail provides a lazy three-hour float that finishes near Macks Inn. Tubing, canoeing, kayaking and rafting are common on the river, while Island Park Reservoir, Henry's Lake and nearby trail systems (including the Coffee Pot Rapids Trail, and regional routes that connect to the Continental Divide and Nez Perce Trails) expand options for hiking, biking, horseback riding, OHV travel and wildlife viewing. The broader Caribou-Targhee National Forest also supports winter sports, hunting, picnicking and overnight stays in historic cabins or lookouts in season. The campground itself is small and straightforward: there are exactly 16 campsites, all configured to accommodate both RVs and tents, with a mix of single and double sites and a handful that include 50-amp electric hookups. Each site has a picnic table, a utility table, a tent pad and a campfire ring; vault toilets, drinking water and trash collection are provided, and all interior roads and parking spurs are gravel. The highway-side location means easy access for trailers and day trips, and Macks Inn just across the highway and a quarter-mile north of the campground entrance provides practical services such as boat rentals, shuttle service, showers, laundry, gasoline and groceries. Because fees, reservation rules and seasonal openings can change, plan ahead by checking current conditions and permits with the Caribou-Targhee National Forest or the official recreation reservation site before you arrive; also be prepared for variable mountain weather and occasional road or trail closures that affect access.
| Agency / operator | Not listed |
|---|---|
| Booking | Recreation.gov [Recreation.gov] |
| Max RV / trailer length | Not listed |
| Bear storage | Not listed |
| Season | Not listed |
Picks are 65 ft or shorter: the longest RV site listed here. Pickup area: Bozeman (Bozeman Yellowstone International (BZN)), about 89 mi straight-line from Flat Rock (Idaho). RV rentals in Bozeman
Pick up in Gallatin Gateway
Pick up in Bozeman
Pick up in Bozeman| Hookups |
|---|
| Not listed |
| Max stay | 14 nights max |
|---|
Sources: Recreation.gov — Flat Rock (Idaho). "Not listed" means no source we use states it.
Official facts link to their source; “Listing” facts come from the Recreation.gov listing. Anything we can't source says so.
