Yellowstone Park / Mountainside KOA Journey Blog
Your RV Wants To Visit Yellowstone. We Have The Perfect Site For You!
KOA Journey campgrounds offer the perfect oasis after a day on the road. Whether it’s along the way or a quick getaway, they’ve got you covered. Located near the highways and byways of North America with long Pull-thru RV Sites, they deliver convenience to the traveling camper. Pull in, ease back and take a load off.
KOA Journey campgrounds offer the perfect oasis after a day on the road. Whether it’s along the way or a quick getaway, they’ve got you covered. Located near the highways and byways of North America with long Pull-thru RV Sites, they deliver convenience to the traveling camper. Pull in, ease back and take a load off.
From Yellowstone: 7.5 miles west of West Yellowstone, MT and the West Entrance to Yellowstone National Park on US Hwy 20.
From Idaho: 1.5 miles east of the MT/ID border on US Hwy 20 - next to Mountain Vista Hotel.
GPS: N44.6866. W111.251811
*Please note that this KOA Journey is 1.5 miles west of the Yellowstone Park/ West Gate KOA also on US Hwy 20
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Upgraded Comfort & Outdoor Space at Yellowstone Park / Mountainside KOA Journey
The 2025 season is underway, and Yellowstone Park / Mountainside KOA Journey is looking better than ever. We’ve made key upgrades that bring more comfort, convenience, and outdoor enjoyment to your stay—just minutes from Yellowstone’s west entrance.
Traveling with pets? You’ll love our new KOA Paw Pen Sites, designed with both you and your furry companions in mind. These upgraded RV sites feature:
A private, fenced area right on your site—perfect for letting your dog roam safely
Full hookups and level pads for easy setup
The same beautiful Mountainside KOA surroundings with a little extra space for your whole crew
It’s pet-friendly camping made easier and more relaxing than ever.
We’ve also added new decks to select cabins, giving guests more room to soak in the views, enjoy a quiet morning coffee, or gather for meals outdoors. With the Gallatin National Forest just steps away, your cabin experience now includes an even better front-row seat to nature.
From pups to patios, these upgrades are just one more reason to see what’s new around camp at Yellowstone Park / Mountainside KOA Journey. Book your 2025 stay and come experience the improvements for yourself!
That doesn't mean this area has to always be empty. When you start reviewing camping options, your history will display here to help compare sites and find the best stay. You will be able to share your stay information with friends or family and save it for a later time if you have a KOA Account.
Make checkout easy by booking all your reservations at once. Add your sites from different campgrounds into your shopping cart* and then choose checkout.
