RV Parks & Campgrounds

Yellowstone KOA Mountainside Campground KOA

3.5 Stars 3.5 -  6 Reviews  $$$$$
(406) 646-7662
1545 Targhee Pass Highway
West Yellowstone, Montana


Water, Electric, Fifty Amp, Sewer, Wi-fi, Pets allowed, Tents, Handicap, Picnic Tables, Restroom, Dump Station, Cable TV, Laundry, Showers, Propane, Fishing, Campfire, Playground, Restaurant


September 3, 2019 - reviewed by Pam
3.0 Stars   $90
Not Worth The Money
We stayed 2 nights in a drive thru for about 90 a night. Site had very little gravel. We had to figure out the best way to get I to the site ourselves. It was very convenient to Yellowstone west entrance. I would stay elsewhere for less money!

June 22, 2019 - reviewed by Sandy
4.0 Stars   
Stayed 2 Nights
We are nearly 12’ tall. We were assigned a drive through site but would not fit under or between the branches. We circled around and backed in. Wish the pine branches had been cut up higher. We had water and electric. Great bathroom and shower combo building. Very friendly staff and pizza offering was a nice option. The location works well for spending the day in Yellowstone NP.

June 14, 2019 - reviewed by Meaghan M
2.0 Stars   
If you have a bigger rig stay away. Sites are uneven. Sewer is uphill from sites. Water requires a 50’ hose in order to find a level area. Pretty river towards the back of the property but there isn’t fishing. Mosquitos are crazy! They are redoing parts and I can only hope it includes the longer pull thru areas because they are absolutely awful. At $90 a night it is such a rip off. Try Grizzly RV or the KOA a mile closer to the park. Really disappointing.

July 6, 2018 - reviewed by AwesomeRN
4.0 Stars   
Yellowstone Visit
This was a great place to stay while visiting Yellowstone. Not a bad drive in and out of the park. Nice onsite store and pizza restaurant. (Kind of expensive but descent variety) Nice ponds to walk around if you have pets Mosquitoes can get bad certain times of the day We stayed 3 days and we did not have them all 3 days Showers and bathrooms were unisex but were clean

June 6, 2018 - reviewed by Audrey
4.0 Stars   
Mostly Nice
We stayed here one night in early June claiming a tent site near the creek and casting ponds. Drawn here by the advertised “fishing” offered by this park rather than the pool of the neighboring park. The park is clean and well maintained and the staff friendly and accommodating, allowing us to claim a different site than we were initially given. The bathroom and shower rooms are beautiful. Must be new within past year. Unisex shower rooms suitable for a parent with a couple of kids to use. Heated tile floor. Very nice. Fishing exists only in creek but is so overgrown that it is hard to find good access. Big ponds were just for practice casting. BEWARE OF MOSQUITOS however. Up until the sun went behind the mountain we faced nothing short of a mosquito-pocalypse. Be prepared. Can’t speak for the cabins but they also look newer and very nice. I would highly recommend. Just be prepared for mosquitos til sundown. 4.8 stars

May 29, 2018 - reviewed by KS23
4.0 Stars   
Stayed Here Two Weeks
Recommended. We stayed here two weeks and loved it. Had not been a KOA very long. But they were working at improvements. It was perfect for us. Drive into West Yellowstone was about five minutes.

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