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Yellowstone Park-Mountainside KOA

16 Reviews
Review Campground Win Gear

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About This Campground

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  • Drive-In
    Park next to your site
  • Walk-In
    Park in a lot, walk to your site.
  • Hike-In
    Backcountry sites.
  • Boat-In
    Sites accessible by watercraft.

Stay Connected

  • WiFi
  • Verizon
  • AT&T
  • T-Mobile

Site Types

  • Tent Sites
  • RV Sites
  • Standard (Tent/RV)
  • Dispersed
  • Group
  • Cabins
  • Equestrian


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


16 Reviews of Yellowstone Park-Mountainside KOA

Ratings Breakdown

  • 0
  • 0
  • 1
  • 7
  • 8
Sotnos B.The Dyrt PRO User
Reviewed Nov. 14, 2021


Very large KOA. Had a tent site next to the creek/pond. Very quiet at night. Check in was a breeze. Camp store appeared to be well stocked. Bathrooms were spotless, large and well appointed. Showers are not on a timer. Note there are 2 KOAs in West Yellowstone. They're only a couple of minutes…

Month of VisitOctober
Brenda K.
Reviewed Oct. 1, 2021

Neat, clean and safe

Love this KOA!  It had plenty of room for RV's and tents with lots of amenities.  The showers were very clean and spacious with plenty of hot water.  The staff was very helpful and friendly.  We enjoyed our stay here and loved that it is close to Yellowstone.  We will definitely be back!

Month of VisitOctober
Joy M.
Reviewed Jul. 27, 2021

Great amenities, close to yellowstone west entrance

Very clean campground, lots of amenities. Showers were very clean. Tent sites are a little bit cramped but it was okay. Felt safe from both people and animals.

I think the other KOA close by has more food options, but i liked this one just fine.

Month of VisitAugust


Yellowstone Park-Mountainside KOA is located in Montana


From jct US 191 & US 20: Go 7 mi W on US 20.


1545 Targhee Pass Hwy
West Yellowstone, MT 59758


44.68704345 N
111.25147436 W

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About This Campground

Connection Details

We rate connection speeds from campers like you who submit speed tests with Field Reports.

  • Good- 10+Mbps

    Campers can make calls and send texts & emails, watch an HD movie, play multiplayer games, and more.

  • Fair- 3Mbps-10Mbps

    Campers can make calls, send texts & emails, video chat, stream video, and play online games.

  • Poor- 0Mbps-3Mbps

    Campers might be able check email, send texts, and make calls.

  • Available-

    Campers have been able to connect here but we don’t know the quality of the connection.

  • Unknown-

    Connectivity is not known for this campground.

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