Creek sounds carry through the tent sites at night, a detail that comes up repeatedly among campers who stayed near the water at Yellowstone Park-Mountainside KOA. Set just outside West Yellowstone in Montana, this full-hookup KOA runs from mid-May through October 1 and draws a mix of RV travelers and tent campers using it as a staging point for Yellowstone's west entrance. Sites vary considerably depending on where you land. Creek-side RV spots have more space and include swing benches. Tent sites, by contrast, are tucked into tighter corners, some sloped and without tent pads, which is worth knowing before you book.
The facilities are consistently the most-praised feature across reviews. Showers are private, timed by demand rather than a coin meter, and multiple reviewers describe the bathrooms as spotless. Kimberly M. notes "the showers are private and clean and plenty of hot water." The camp store is well-stocked and reasonably priced, and the campground also has a pizza restaurant, a coffee shop, a breakfast grill, a playground, an indoor heated pool, and a hot tub. Highway noise is audible from some sites near the road, though most campers report the campground quiets down after dark.
Two practical details come up frequently. First, there are two KOAs in the West Yellowstone area, including Yellowstone Park - West Gate KOA Holiday about 1.7 miles east, and navigation sometimes sends campers to the wrong one. Look specifically for "Mountainside." Second, the drive to Yellowstone's west entrance takes roughly 10 to 15 minutes, but once inside the park, the main junction is still a significant distance further. Campers focused on maximizing time in the park often note that staying inside Yellowstone is more efficient, though those sites book fast.
This campground makes the most sense for travelers who want full hookups, reliable showers, and proximity to Upper Cherry Creek and other surrounding Gallatin National Forest access points, or those arriving late and needing a well-equipped overnight stop before heading into the park the next morning.
Fee Info
Adults 18+, Kids 5-17, Free 0-4
RV Road Trip Guides
Map & DirectionsYellowstone Park-Mountainside KOA is located in Montana near West Yellowstone
Address
1545 Targhee Pass Hwy
West Yellowstone, MT 59758
Coordinates
44.68704345 N
111.25147436 W
Connectivity
- T-Mobile5GExcellent CoverageVerified by 10 usersLast on 8/1/26
- Verizon5GExcellent CoverageVerified by 22 usersLast on 8/1/26
- AT&TLTESome CoverageVerified by 4 usersLast on 8/1/26
Connectivity
- T-Mobile5GExcellent CoverageVerified by 10 usersLast on 8/1/26
- Verizon5GExcellent CoverageVerified by 22 usersLast on 8/1/26
- AT&TLTESome CoverageVerified by 4 usersLast on 8/1/26
Access
- Drive-InPark next to your site
- Walk-InPark in a lot, walk to your site.
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
- Group
- Cabins
- Equestrian
Features
For Campers
- Market
- ADA Access
- Trash
- Picnic Table
- Firewood Available
- Phone Service
- Reservable
- WiFi
- Showers
- Drinking Water
- Electric Hookups
- Toilets
- Alcohol
- Pets
- Fires
For Vehicles
- Sanitary Dump
- Sewer Hookups
- Water Hookups
- Pull-Through Sites
- Big Rig Friendly
Contact
General Info
Reservations
Drive Time
- 1 hr 43 min from Bozeman, MT
- 2 hrs 56 min from Helena, MT
- 3 hrs 41 min from Idaho Falls, ID
- 4 hrs 24 min from Pocatello, ID









































