Montana has many stories about snake-filled lakes, with tales of serpents lurking near the shore often shared around campfires. Some tell these stories as warnings, while others use them to scare people or keep kids away from the water.
However, Montana doesn’t have a large number of water snakes. The most common ones in the state are the plains garter snake and the western terrestrial garter snake, both of which are harmless. Many reports of snake infestations may be exaggerated.
Nelson Reservoir
Created in 1914 by damming the Milk River, Nelson Reservoir is a popular spot for fishing year-round. While prairie rattlesnakes have been seen in the area, they mostly stick to dry land but may use water to travel. Garter snakes, which avoid people, are the most common species here.
Flathead Lake
Flathead Lake, Montana’s largest natural freshwater lake, is home to various wildlife, including snakes. The most common are the northern rubber boa and the common garter snake, both non-threatening. However, the nearby Flathead Indian Reservation has prairie rattlesnakes, which are venomous and can grow up to five feet long.
Whitefish Lake
Whitefish Lake is home to western terrestrial garter snakes, which have colorful stripes and mildly venomous saliva that can cause minor swelling if bitten. Black racers are also found here; while not dangerous, they may chase people briefly when startled. Prairie rattlesnakes are also present in the area.
Fort Peck Lake
Fort Peck Lake, created in the 1940s, is one of the largest man-made lakes in the U.S. It hosts several snake species, including black racers, prairie rattlesnakes, and garter snakes. Hog-nosed snakes, known for their upturned snouts used for digging, are also found here. While their bites can be mildly toxic, they are not aggressive. The northern rubber boa, a very docile snake, may also be present.
Final Thoughts
If you love the outdoors but worry about snakes, Montana is still a safe destination. The prairie rattlesnake is the only real threat, and even encounters with it are rare. When hiking or camping, carrying a snakebite kit is a good precaution. However, you could explore the wilderness for days without seeing a single snake.
Disclaimer: Our team has meticulously fact-checked this article to ensure accuracy and eliminate any misinformation. We are committed to providing honest, reliable, and trustworthy content for our readers.
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