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Please call the campground directly to make your reservations at 888-562-3318. Thank you.

Welcome to the Soo Line Trail / Onamia KOA!

Soo Line Trail / Onamia MN KOA is located less than a mile off US Hwy 169 in Onamia, Minnesota. The Soo Line Trail runs directly through the campground property giving you direct access to explore on ATVs, bicycles, or hiking. In addition to the trail, our wide-open spaces, outdoor recreation amenities, themed weekends, and planned kids' activities all provide plenty of family fun. For the fisherman and water sports enthusiasts, we are right down the road from beautiful Mille Lacs Lake. If you're looking for some indoor excitement, the Grand Casino Mille Lacs is just minutes away. Whether you are ATVing, fishing, hiking, or just relaxing, we provide the place for you.
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Campground Amenities

  • 50 Max Amp
  • 68' Max Length
  • Wi-Fi
  • Firewood ($)
  • Dog Park
More About Amenities

Ways to Stay

KOA Mobile App for Android and iOS

Download our free mobile app to plan your next camping trip and make your reservations right from your smart phone or other mobile device!

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KOA Rewards Program

Do more of what you love - camping - and reap the rewards when you join the KOA Rewards program! From camping discounts at KOA campgrounds to additional savings offers from our partners, you can quickly see how the $36 pays for itself and more!

Exclusive Benefits:

  • 10%* off your daily registration rate all year long at 500 KOA Campgrounds throughout North America
  • Rewards points that accumulate for cash off future KOA camping stays
  • Free** night of camping during KOA Rewards Weekend at participating KOAs
  • ...and Much more!

Latest Hot Deal

Big Weekend

Big Weekend Photo

WHEN: May 12-13, 2023

WHAT: Stay Friday night, May 12th at a participating campground, and get Saturday night, May 13th for just $20*.

WHY: The Big Weekend helps raise funds to send kids with cancer to medically-supervised camps all across North America. Kids fighting cancer deserve a chance to attend a summer camp and to just be a kid again. Funds raised from May 13 support KOA Care Camps which distributes more than $2.2 million dollars annually to support 132 oncology camps each year. Learn more at koacarecamps.org.

* Only at participating KOA locations. Applies to one-site, for two consecutive nights at the same KOA. Sites may be limited. Not valid with other discounts.

Book This Hot Deal

Local Area

The Soo Line Trail

The Soo Line Trail Southern Route is more popularly known as the Soo Line South ATV Trail.
The converted rail-trail runs for 105.6 miles in Minnesota between Royalton and the Minnesota–Wisconsin state line east of Pleasant Valley.
This amazing trail runs directly thru our property giving us direct access to the fun.
Experience woods, farmland, and the Kettle River. Perfect for hiking, biking or ATVing!


Mille Lacs Grand Casino

Just minutes away!
Voted favorite casino in the Minnesota area, there is plenty to do here from gaming, live entertainment, shopping, incredible dining and spa.
Don't miss out on this one!

777 Grand Ave

Onamia, MN 56539




Happy's Drive-In

Voted one of the best places to eat in Onamia.
A great place to enjoy a perfect experience and friendly staff.
Located just 1/2 mile from the campground.
Happy's Drive-In is the perfect place for families to eat some of the best burgers and ice cream in the area!


Lake Mille Lacs

Mille Lacs is not only one of the state's largest lakes, with 132,500-acres, but the fish are also trophy-size, whether you are looking for walleye, muskie, northern pike, or bass fishing! A quick drive from the campground will have you on the water in no time. 
Soo Line Trail/Onamia KOA  will make the perfect base camp for all your area fishing.