The Most Snake Infested Lakes in Wisconsin

Wisconsin, nestled in America’s Great Lakes region, is a wonderful state with plenty of outdoor spaces. With lakes, forests, parks, and more, people from all over flock to Wisconsin for its wilderness and wildlife, with plenty of recreational opportunities. While these areas, especially the state’s lakes, are excellent for outdoor lovers, they are also home to many animals. Among the many, snakes stand out, as Wisconsin is home to more than 20 snake species, out of which the timber rattlesnake and eastern massasauga are venomous. Thus, it is essential for visitors to know what snakes live in these lakes before they head out for a swim, ride out on a boat, or even cast a line to fish. To make sure you stay safe when exploring Wisconsin’s scenic lakes, here are the most snake-infested lakes in the state.

Devil’s Lake

Often considered one of the most snake-infested areas in the state, Devil’s Lake is a famous 374-acre lake in the Baraboo Range. This lake is a prime attraction in its namesake, the Devil’s Lake State Park, making it a popular spot for outdoor recreation. Visitors to the 9,217-acres state park can often be seen hiking, biking, boating, fishing, and swimming in and around the river. The surrounding area is also home to plenty of tall cliffs and bluffs, offering many amazing viewpoints of the lake and its forested coast.

Due to the lush flora and fauna in the region, snakes are also not far behind when it comes to Devil’s Lake. To this end, the lake is a known habitat for multiple species, including the northern watersnake, timber rattlesnake, small red-bellied snake, and the black rat snake. Among these, only the timber rattlesnake is venomous, and it is one to watch out for. This slithering viper can reach a total length of up to 60 inches (152 cm) and has a prominent dark crossband coloration on a light brown background. While this species tends to be quite timid, they are good swimmers and have a high venom yield that can cause pain, spasms, and bleeding. Thankfully, timber rattlesnakes give off a loud rattling sound from their tail, so you’ll know when to get away from one.

Lake Pepin

Lake Pepin is a natural lake that lies along the Mississippi River on the border between Wisconsin and Minnesota. It is a naturally occurring lake on the Mississippi River and is now a lovely tourist destination. The lake is one of Wisconsin's larger bodies of water, boasting a surface area of over 25,000 acres and a length of more than 22 miles (35 km). As for recreation, Lake Pepin is a top spot for fishing, kayaking, and waterside camping. Moreover, the lake hosts plenty of events, such as the Tour de Pepin in June, a supported cycling ride around the coast with live music, food trucks, and more.

Amid the fun activities, Lake Pepin is also famous for the legend of 'Pepie,' a mythical serpent-like creature said to lurk in its depths. While 'Pepie' remains a tale of local folklore, the lake is certainly home to plenty of smaller, real-life serpent-like creatures. Specifically, Lake Pepin is home to various water-loving snakes, such as the common garter snake and watersnake; the former is one of the most widespread snakes in the region, identified by its prominent yellow stripes and black coloration. Thankfully, both are non-venomous, so visitors can have fun without worrying about a venomous bite.

Lake Michigan

While Lake Pepin may be large, it pales in comparison to Lake Michigan, one of the Great Lakes of North America. This massive body of water spans over 22,404 sq miles (58,030 sq km), making it the third largest of the Great Lakes. Wisconsin boasts a 407-mile (655 km) shoreline with the lake, filled with plenty of natural areas, recreational opportunities, and wildlife. Among the most famous are the Rock Island State Park, the Eichelman Park, and the Harrington Beach State Park, each showcasing unique coastal sights and activities.

With its lush mix of coastal forests, islands, and deep waters, water snakes thrive in Lake Michigan. The part in Wisconsin alone houses an array of species, including the northern watersnake and the common garter snake. When it comes to swimming ability, few snakes surpass the northern watersnake, which is predominantly seen in and around large bodies of water. This snake can grow up to 4 ft 5 in (135 cm) long and features a yellow-to-black coloration with dark-colored bands. While they may appear scary, northern watersnakes are quite timid, and their bite is harmless to humans. That said, it is vital to keep an eye on the water as the eastern massasauga, though extremely rare, can occasionally be found in specific wetland areas near Lake Michigan.

Lake Winnebago

Lake Winnebago is a shallow freshwater lake in the east-central part of Wisconsin. Spanning nearly 140,000 acres, it is the largest lake entirely within Wisconsin and has the scenery to back it up. The lake's expansive shoreline features plenty of popular parks, such as High Cliff State Park, a lovely destination for camping and hiking. The park also boasts a marina and beach, where people can be seen setting out on boats, fishing, and swimming in the lake’s tranquil water.

Along with people, many animals, including snakes, also prefer Lake Winnebago’s calm waters. While the common garter snake is a name present in most lakes, this lake is also home to the eastern garter snake. This snake is indigenous to North America and can grow up to 26 inches (66 cm) long, making it one of the smaller snakes in the state. While non-venomous, garter snakes have a Duvernoy’s gland, which can cause non-allergic symptoms in humans.

Snake Safety in Wisconsin's Lakes

Wisconsin's lakes are undoubtedly beautiful and inviting, offering countless opportunities for outdoor adventure. However, beneath their tranquil surfaces lies a thriving ecosystem where various snake species reside. From Devil’s Lake’s timber rattlesnakes to Lake Michigan’s northern watersnakes, these reptiles are an integral part of the state's natural landscape. While most of these snakes are harmless, knowing what to expect can ensure a safe and enjoyable experience. So, as you plan your next trip to Wisconsin's lakes, stay informed and prepared, allowing you to fully appreciate the beauty and wonder of these stunning environments.