Follow the Lewis and Clark Trail to the Onawa/Blue Lake KOA in the heart of the Loess Hills, formations created thousands of years ago when retreating glaciers left behind fine silt particles called loess.

Follow the Lewis and Clark Trail to Onawa/Blue Lake KOA, located in the heart of the Loess Hills, unique formations created thousands of years ago. You can view the topography along the Loess Hills National Scenic Byway. Relax at this quiet, rural campground that offers shade trees and open grassy areas. Enjoy beautiful lake sunsets and the wind whispering through the trees. Let the kids (or the kid inside of you) take a dip in the pool and explore the campground with paddle-boats or fun-cycles. This KOA is located on the lake, with fishing and boating for all to enjoy. Free Wi-Fi! In June, the area hosts a Lewis & Clark Festival with a keelboat display, quilt show and reenactments - or visit the Lewis & Clark Interpretive Center year-round. Try your luck at Blackbird Bend Casino, just a 5-minute drive. Get your motor running over to the Onawa Raceway and Events Complex, Onawa's newest attraction. Open April 15 - October 15 (weather permitting). Pool: Memorial Weekend - Labor Day Weekend. Max pull thru: 95 feet. Your hosts: KOA owners & employees.  ALL HOLIDAY WEEKENDS REQUIRE A 3 DAY MINIMUM STAY.

Campground Amenities

  • 50 Max Amp
  • 93' Max Length
  • Wi-Fi
  • Pool (5/25 - 9/3)
  • Propane ($)
  • Fishing
  • Firewood ($)
  • Bike Rentals ($)
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 Double Points

KOA Rewards Double Points

KOA Rewards account holders will earn double rewards points when they book a new reservation using this promotional offer between July 17 and September 2, 2026 and complete their stay at any KOA between August 13 and September 2, 2026.

The  reservation must be made during the promotional booking window using the KOA.com Hot Deal link or by mentioning promo code 2XPTS26 when booking by phone or in person. 

Valid at all KOA Campgrounds located throughout North America on any available site.

Terms and Conditions:

  • Not valid on existing reservations made before July 17, 2026
  • Reservations must be made between July 17 - September 2, 2026
  • Stay must occur between August 13 - September 2, 2026
  • Excludes long-term reservations or stays extending over 28 nights
  • Minimum length of stay rules may apply
  • All site types are eligible, based on availability
  • Offer valid with other discounts
  • Valid KOA Rewards Account required at the time of check-in
  • Camper must opt-in by booking with the Hot Deal link or mentioning the promotional code when booking by phone or in person

Book This Hot Deal

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Local Area

Loess Hills

Along the shores of the Missouri river, discover historical natural wonders in the unique and beautiful Loess Hills. Loess means windblown soil. Strong winds 14,000 years ago swept silt deposits from the Missouri River Valley flood plain into huge clouds of dust, depositing them into rugged bluffs which formed the Loess Hills. Monona and Harrison counties, being the widest and deepest areas of loess soil, are considered the "Heart of the Loess Hills." The Loess Hills Scenic By-Ways in western Iowa have been named one of the nations "10 most outstanding scenic by-ways." The By-Ways stretch 220 miles across western Iowa, the full length of the Loess Hills.

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Gambling Casinos

Casino Omaha includes hundreds of slot machines, blackjack, poker, craps, roulette, Big Six, restaurant, lounge and gift shop. The casino is open 7 days a week. The Casino grounds include neon palm trees, mirrored sand dunes, and a glittering fantasy entertainment oasis.

Winnavegas Casino is Western Iowa's largest casino. You'll find over 700 vegas-style "reel" slot machines, 14 Blackjack tables, craps, roulette, Red Dog, Big Six, breakfast, lunch, dinner and Sunday brunch buffets, 24-hour snack bar, full service bar and lounge. The casino is open 24 hours a day seven days a week.

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Museum Complex

The museum complex includes Chicago and Northwestern Railroad Depot and railroad memorabilia, a one-room schoolhouse, windmill, old jail and a church.

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