Welcome to the St. Mary/East Glacier KOA Holiday.

Welcome to St. Mary KOA! Plan your Glacier National Park adventure with St. Mary KOA as your perfect basecamp! Our KOA Franchise is independently owned by the Blackfeet Nation and managed by its business enterprise, Siyeh Corporation. This KOA is uniquely positioned at the eastern gateway to Glacier National Park, just one mile from the park entrance and Going-to-the-Sun Road. Take in breathtaking views of the towering Rocky Mountain peaks, framed by the St. Mary River and Lake. Whether you're exploring Glacier's alpine wonders or relaxing at the campground, St. Mary KOA offers an unforgettable stay rooted in Blackfeet heritage and hospitality. Exploring St. Mary, MT: Escape to St. Mary, Montana, where adventure, culture, and nature come together. This location provides hiking, kayaking, and wildlife viewing just steps from your campsite. Experience the spectacular beauty of Going-to-the-Sun Road, embark on a guided Glacier Park tour, or paddle across the pristine waters of Lower St. Mary Lake and River. St. Mary KOA also offers opportunities to learn about Blackfeet culture and heritage, making your stay even more meaningful. St. Mary KOA Has a Way to Stay for Everyone! At St. Mary KOA, we offer a variety of accommodations to suit every traveler's needs, whether you're road-tripping in an RV, seeking a cozy cabin, or pitching a tent under the Montana sky.

  • RV Sites: Spacious, full-hookup RV sites with stunning mountain views and easy access to the campground's amenities.
  • Lodging & Cabins: Enjoy a warm and cozy stay in one of our cabins, perfect for those looking for a little extra comfort.
  • Tent Camping: Experience the beauty of Glacier National Park with a classic tent camping adventure.
  • Group Camping: Ideal for families, friends, or organized groups looking to explore Glacier together.

All our sites are pet-friendly, so bring your furry companions along for the adventure! Need a day to explore without them? Take advantage of our on-site pet sitting and kennel boarding services. St. Mary KOA Amenities and Recreation: Your stay at St. Mary KOA includes access to top-notch amenities and exciting recreational opportunities designed to enhance your Glacier experience:
  • Swimming pool & hot tub complex – Relax after a long day of hiking. (Pool is open June 20 – September 10)
  • Full espresso bar – Fuel your adventures with your favorite coffee drinks.
  • KOA grocery store & gift shop – Stock up on essentials and souvenirs.
  • Board a Glacier tour bus at the entrance – Skip the hassle and take a guided tour of the park.
  • Putting green & Bocce ball – Enjoy some friendly competition during your stay.
  • On-site pet sitting & kennel boarding – Give your pets a comfortable place to rest while you explore.
  • Wi-Fi – Stay connected during your stay.

Local Attractions and Recreation: Staying at St. Mary KOA means you're just moments away from some of Montana's most breathtaking outdoor experiences:
  • Glacier National Park – Just one mile away, with access to Going-to-the-Sun Road, iconic hikes, and stunning mountain views.
  • Going-to-the-Sun Road – Drive the legendary 52-mile scenic highway through Glacier's dramatic peaks.
  • Many Glacier Valley – Known for its abundant wildlife, stunning lakes, and incredible hiking trails.
  • Lower St. Mary Lake & River – Perfect for kayaking, fishing, or relaxing by the water.
  • Blackfeet Nation Cultural Sites – Learn about the history and traditions of the Blackfeet people. 
  • Wildlife Viewing – Spot bears, moose, bighorn sheep, and more in their natural habitat.

Campground Amenities

  • 50 Max Amp
  • 60' Max Length
  • Pool (6/20 - 9/10)
  • Hot Tub/Sauna
  • Snack Bar ($)
  • Propane ($)
  • Mini Golf
  • Firewood ($)
  • Pavilion
  • Dog Park
More About Amenities

Ways to Stay

KOA Holiday

KOA Holiday Campgrounds

Whether you’re exploring the local area or hanging out at the campground, KOA Holidays are an ideal place to relax and play. There’s plenty to do, with amenities and services to make your stay memorable. Plus, you’ll enjoy the outdoor experience with upgraded RV Sites with KOA Patio® and Deluxe Cabins with full baths for camping in comfort. Bring your family, bring your friends, or bring the whole group – there’s plenty of ways to stay and explore.

KOA Holidays Feature:

  • RV Sites with a KOA Patio®
  • Deluxe Cabins with full baths
  • Premium Tent Sites
  • Group meeting facilities

Latest Hot Deal

KOA Rewards Appreciation Weekend

KOA Rewards Appreciation Weekend Photo

WHEN: September 5-6, 2025

WHAT: KOA Rewards holders stay as a paying guest on Friday, September 5th at any participating KOA campground and get Saturday, September 6th for FREE*.

WHY: KOA Rewards Appreciation Weekend is designed exclusively for KOA Rewards holders to say thanks for your loyalty and for trusting your camping memories to us. On this late-summer weekend, we gather to celebrate friends, family and fun in the great outdoors we all adore.

* Only at participating KOA locations. Applies to one site per a KOA Rewards account, for two consecutive nights at the same KOA. Sites may be limited. KOA Rewards discount does apply but not valid with other discounts.

Book This Hot Deal

Campground Awards and Programs