Welcome from the Hardin KOA.

First things first:  We are excited for another season in beautiful Montana.  
Due to daily changing rules and regulations, please call ahead - 406 665 1635.  Office hours: 10 am to  6 pm MST

The Hardin KOA is halfway between Yellowstone National Park and Mt. Rushmore. Come stay with us and enjoy all that our area has to offer. You'll be glad you did!

Campground Amenities

  • 50 Max Amp
  • 80' Max Length
  • Wi-Fi
  • Pool (4/20 - 9/30)
  • Hot Tub/Sauna
  • Propane ($)
  • Firewood ($)
  • Pavilion
  • Dog Park
More About Amenities

Ways to Stay

KOA Journey

KOA Journey Campgrounds

KOA Journey campgrounds are the perfect oases 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 Journeys Feature:

  • Pull-through RV Sites with 50-amp service
  • Premium Tent Sites
  • Well lit after hours check-in service

Latest Hot Deal

Big Weekend Care Camps

When: May 10 – 11, 2024 What: Stay at a participating KOA campground on May 10 & 11, 2024, and 50%* of the cost of the site on the second night will be donated to Care Camps! Why: Your stay will make a difference in the lives of children with cancer, by helping raise funds for medically supervised Care Camps across North America. These camps give kids with cancer a chance to attend a summer camp and just be a kid again. Funds raised from the Saturday, May 11 campground donation support the KOA Care Camps Trust, which distributes more than $1 million annually to support 125+ Care Camps. Learn more at koacarecamps.org. * Only valid at participating KOA locations. Applies to one site, for two consecutive nights at the same KOA. Sites may be limited. Only KOA Rewards discounts apply.

Book This Hot Deal

Local Area

Yellowtail Dam

The Yellowtail Dam is within an hours drive away. Beautiful scenery and wild animals can be seen along the way. Big Horn Canyon is a site to see!!! Don't miss the visitor center next to the Yellowtail Dam with all the information about the area. You can even drive to the marina and walk into the waters of the lake of Big Horn Canyon.  Check the internet for the latest update.


Little Bighorn National Monument ("Custer's Last Stand")

During June the Reenactment of The Battle of Little Big Horn is and you can meet the actors after the show. Some actors stay right here at the Hardin KOA. How fun is that? Custer visited and had ice cream at our ice cream social.


Pompey's Pillar

Pompey's Pillar is less than 45 minutes away. Pompey's Pillar is a National Monument that rises 150 feet from a 2 acre base on the banks of the Yellowstone River. Captain William Clark of the Lewis and Clark Expedition, arrived at Pompey's Pillar on July 25, 1806, on his return trip from the Pacific. Clark marked his visit by engraving his name and date of his arrival. Clark named this rock Pompey's Tower and it was renamed Pompey's Pillar in 1814 when the Lewis and Clark journals were published.


The Farmer's Daughter General Store

Home Decor. Antiques, Gifts, Souvenirs, Scrapbooking, Boutique, and Soda Fountain.  Owner Landa Uffelman.
She is located downtown Hardin.  206 N. Center Ave.  406 665 2078.
The store is so unique and a big positive addition to Hardin.  It is in the original structure of the Fort Custer General Store, owned by her Grandmother and Grandfather.  Harvey and Charlene Warren.
Don't forget to buy Papa Harvey's seasoning.  I also sell it in my store here at Hardin KOA.


Campground Awards and Programs