Flatrock Campground
The numbers that decide it
Recreation.gov publishes no site-level detail for this campground, so we cannot say what length of rig it takes. Call the managing office before committing to it in a large vehicle.
Site-level detail from Recreation.gov, checked 2026-08-05. Where a field says “not published”, the agency has not published it — it does not mean zero.
Flatrock Campground
Flatrock Campground is located 22 miles south of West Yellowstone, Montana off of Highway 20. The campground is adjacent to the Henry’s Fork of the Snake River.
Before you go
Season
May
Reservations
Reservations accepted
Fees
Single Site $ 25.00 • Single Site (electric) $ 31.00 • Double Site (electric) $ 62.00 • Extra Vehicle (ea.) $ 7.00
Restrictions
No All Terrain Vehicles (ATVs) or Off Highway Vehicles (OHVs) allowed in the campground.
Scenic drives that pass close
Make it a night on a better road
Byway plans the drive in — real stops, real weather, nothing invented.