Full Hookup RV Sites

Full Hookup RV Sites in Rio, WI
All of our RV sites at Willow Mill come with full hookups — water, sewer, and electric — on large, shaded lots along the water in Rio, Wisconsin. If you’re looking for a comfortable base camp in Columbia County, welcome home!
Relax in Comfort at Willow Mill Campsite
Willow Mill has been welcoming RV campers since 1968, and the property has grown into one of the more complete campgrounds in the area. Our sites are oversized and shaded by mature trees, with picnic tables and fire rings at each one. Lakefront sites put you right at the water’s edge, and the whole property sits behind gated entry so the atmosphere is quiet and secure.
Beyond the sites themselves, we have a lot going on here. The swimming pool is open all summer, kayak rentals get you out on the water, and mini golf and a game room give the kids somewhere to spend their afternoons. The pavilion and clubhouse are available for gatherings, and hiking trails wind through the property. On top of that, our camp store carries firewood, ice, RV supplies, propane refills, and refreshments so you don’t have to high tail it out of here for supplies. Laundry facilities, private bathrooms, and a dump station round out the practical side of things. And we’re pet friendly too, with a dog park on the property! See our full suite of amenities to know what to expect when you visit.
When you’re ready to explore, Rio is located just about 30 miles northeast of Madison and 35 miles south of Wisconsin Dells. Henry Vilas Zoo in Madison is free every day of the year, and the Dells delivers everything from waterparks to boat tours on the Wisconsin River. Columbia County itself is quiet and scenic, with Devils Lake State Park and the Wisconsin River corridor both within easy reach. We’re excited to welcome you to the area.



