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Petenwell Lake, the second-largest inland lake in Wisconsin, spans over 23,000 acres and reaches depths of 42 feet, offering a vast expanse of water for adventure seekers. Created in 1948 by the construction of a dam on the Wisconsin River, this artificial lake is a hub for water activities such as water skiing, sailing, and fishing, with an array of game fish including walleye, northern pike, and muskellunge.
Surrounded by undeveloped forest, Petenwell Lake is a haven for nature lovers and wellness seekers, with opportunities for hiking, horseback riding, and exploring the nearby nature centers and parks. Families will enjoy the playgrounds and designated swimming areas at Petenwell County Park, which also features a game room, boat launch, and heated shower facilities.
Nearby, travelers can visit the historic Point Basse Pioneer Festival, explore local museums, or attend vibrant events like the Food Truck & Fly In Festival. For those seeking more leisurely pursuits, the area offers golf courses, community theater performances, and casinos. With its rich wildlife, including wintering bald eagles, and diverse recreational activities, Petenwell Lake is an ideal destination for travelers looking to combine adventure, nature, and relaxation.
- Surface area (mi)
- 57.91
- Max depth (ft)
- 43.96
- Elevation (ft)
- 892.39
- Shoreline length (mi)
- 100.97
Ideal for
- Family friendly:
- Pet friendly:
- Romantic getaways:
Popular activities
- Fishing
- Kayaking
- Canoeing
- Hiking
- Cross-country Skiing
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Help us improve by making a suggestion.
Marinas on Petenwell Lake
Nearby lakes
Where to stay
Frequently Asked Questions
Ready to dive into what Petenwell Lake has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!
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No, it is not safe to swim in Petenwell Lake when there are algae blooms. Algae blooms, especially those caused by blue-green algae, can expose you to high health risks, including respiratory ailments, gastrointestinal upset, and skin rashes through direct contact or inhalation of water droplets containing the algae.
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Petenwell Lake is a popular destination because it is the 2nd largest inland lake in Wisconsin, offering various activities. Visitors can enjoy boating, skiing, tubing, sailing, canoeing, kayaking, and fishing for species like Musky, Bass, and Walleye. The lake also features public boat landings, beaches, and nearby parks and trails.
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Fishing seasons for Petenwell Lake in Wisconsin generally follow state regulations. The general inland fishing season starts on May 3, 2025, and goes until March 1, 2026, for species like Largemouth and Smallmouth Bass, Northern Pike, and Walleye. Specific species like Musky have a harvest season from May 24, 2025, to December 31, 2025, in the Northern Zone.
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Yes, there is a public beach at Petenwell Lake with a boat launch. Petenwell County Park in Adams County has a swimming area, picnic area, and a boat launch. Additionally, other public access points like the State Highway 21 Wayside and Twin Lakes Nature Center offer boat launches, though the latter is more suited for small boats and kayaks.
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Towns near Petenwell Lake that offer amenities for visitors include Monroe Center and Nekoosa. Monroe Center is in Monroe Township of Adams County and provides services like ATVing and other outdoor activities. Nekoosa, located in Wood County, offers shopping, restaurants, and a riverside park.
