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Willow Mill Campsite

Overview

Willow Mill Campsite offers a peaceful getaway set along the banks of the Rocky Run Creek in Rio, Wisconsin. This park is characterized by its lush, wooded landscape and a relaxed atmosphere that encourages guests to slow down and enjoy the outdoors. Whether you are looking for a weekend retreat or a long-term seasonal home, the park provides a traditional camping experience that blends natural beauty with the essential comforts modern RVers expect.

Location & Surroundings

Located in the heart of Columbia County, the park is easily accessible from major highways yet feels worlds away from the hustle of the city. The surrounding area is defined by rolling farmland, quiet country roads, and plenty of green space. The centerpiece of the property is the scenic mill pond, which provides a calm and picturesque backdrop for many of the campsites and common areas throughout the grounds.

Amenities & Park Features

Guests can enjoy a variety of recreational features designed for all ages. Most notably, the park features a spring-fed swimming pond with sandy beaches and a fun inflatable Wibit track. The park offers spacious sites with electric and water hookups, supported by a professional honey wagon service for waste management. Other facilities include:

  • A well-stocked camp store for supplies and snacks.
  • An 18-hole miniature golf course for family competition.
  • A playground and game room to keep children entertained.

Nearby Attractions & Things to Do

While the park itself is a destination, its location serves as a perfect base for exploring Southern Wisconsin. You are just a short drive from the world-famous waterparks and attractions of Wisconsin Dells. For those seeking urban culture or botanical gardens, the state capital of Madison is also within easy reach. Nature lovers can find additional hiking and fishing opportunities at various nearby state natural areas and local lakes.

Who This Park Is Best For

This campsite is ideal for family travelers who prioritize water-based recreation and a safe, community-focused environment for their children. It is also an excellent choice for those seeking a quiet seasonal site away from the more crowded, high-traffic resort areas. If you appreciate a mix of rustic charm, shaded sites, and organized weekend activities, this park will likely fit your travel style perfectly.

Amenities

- Recreational Facilities

• Heated Pool
• Lake
• Boating
• Swimming
• Fishing
• Boat Rental
• No Motors
• Paddle Boats
• Body Of Water (Willow Mill Lake)
• Horseshoes
• Rec Hall
• Game Room
• Planned Activities
• Playground
• Mini Golf
• Kayaking/Canoeing

- Policies

• Folding Tent Campers Allowed
• Pets Welcome
• Tent Camping Allowed

- Rentals

• Cabin/Cottage Rentals (1)

- Other Amenities & Services

• Road Condition (Good)
• Road Type (Paved/Gravel)
• Restroom and Showers
• Restroom/Showers ($)
• Laundry
• ATM Machine
• RV Supplies
• LP Bottles Only
• Firewood
• Ice
• Groceries
• Fishing Supplies
• Onsite Rentals (1)

- Facility

• Type (RV Park)
• Dump Station
• Mobile Sewer Service
• Emergency Phone

- Internet

• WiFi Hotspot
• WiFi Hotspots (1)

- On-Site Rentals

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- Sites

• Total Spaces (220)
• Spaces Available (50)
• Max Length (40)
• 20 Amp
• 30 Amp
• Grass Sites (50)
• Seasonal Sites
• Shaded (Some)
• Water (50)
• Electric (50)
• Max Amps (30)
• Back-ins (35 x 40)
• Room for Slideouts (Yes)
• Fire Rings
• Table at Site
• Trash Pickup at Site

User Reviews

Steve Rist

September 17, 2025

I had a permanent site there. I was unable to get there and pay my lot rent and the new owners stole my golf cart saying it was stripped, according to my neighbors there was nothing wrong with it but a flat tire. Don't trust the new owners.

Paula H

August 29, 2025

My family and I rented a camper and all the fire pits in our section were I see water after a storm came through. There needs to be some way to drain them. AND, we bought 10 pieces of wood and it was all wet. No fire. We were told a worker took the tarp OFF OF THE WOOD to cover an outdoor table. What??! I will not go back.

Kristi Schmidt

July 06, 2025

The state shut the pool fourth of July weekend because the campground doesn't keep up with normal maintenance. Had to wait around in 90 degree heat to park our trailer because people were leaving because there was no pool. Very inconvenient. THE TREES!!!! they need to be trimmed bad you hit everyone one going to your site!!

Dene Zimmermann

August 25, 2024

Our family has been blessed to experience a camping weekend and fsmily reunion at at Willow Mill for 43 years in a row. Willow Mill is attractive, and well run with a large group of permanent capers plus week-end influxes of families. It is located on a 25 acre pond with a steady stream of activities, a pool, a game room and a campground store. The operators of the campgrounds are the 3rd generstion of the original family to open the business. They maintain the campground in excellent condition and expect campers to sow respect for the property and other campers. One large cabin is also available for families without camping equipment.

Johnni Winter

September 17, 2023

My family and I love it here, there is lots to do from fishing to playing at the park. They have trails and different events happening almost every weekend. The permanent site people are super friendly along with the staff. I highly recommend coming here and spending some time.

Map for Willow Mill Campsite

Contact information