RV Sites
Features
Everything You Need for a Comfortable Stay
20 & 30 Amp Electric
Water Supply
Picnic Table
Wi-Fi Facility
Pet Friendly
Parking
RV Sites
Enjoy RV sites and camping at Willow Mill Campsite in Rio, Wisconsin. Since 1968, we've welcomed guests to our peaceful, gated campground with spacious, shaded sites, picnic tables, lakefront views, a swimming pool, kayak rentals, mini golf, and a game room for the whole family.
You'll also find a pavilion, hiking trails, camp store, laundry facilities, private bathrooms, and a fenced dog park. Located near Madison, Wisconsin Dells, Devils Lake State Park, and the Wisconsin River, Willow Mill is the perfect home base for weekend getaways or extended Wisconsin camping adventures.
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RV Sites
Our RV sites offer plenty of large, shaded spots to choose from. Lakefront sites put you right at the water’s edge, and our oversized sites handle big rigs without a problem.

Long Term RV Sites
Willow Mill has been a seasonal home for families since 1968, and our long term sites reflect that. Claim your spot for the season and spend your summers on the water in Columbia County.
