Devil’s Lake, in the Baraboo Hills of south-central Wisconsin, is the state’s most visited park: a deep, clear lake ringed by quartzite bluffs and boulder fields. It is also a place of genuine significance in Ho-Chunk (Winnebago) tradition, as the home of Waterspirits and the scene of their battles with the Thunderbirds, and it has a light-hearted modern legend of a lake monster. What it does not have is a documented history of monster sightings.[1][2][3]
| Location | Devil’s Lake State Park, near Baraboo, Wisconsin |
|---|---|
| Size | About 360 acres (150 ha), a little over a mile long |
| Setting | Quartzite bluffs about 500 ft (150 m) high; formed at the end of the last ice age |
| Ho-Chunk name | Te Wákącąk (Ta-wa-cun-chuk-dah), “Sacred Lake” |
| Traditional beings | Ho-Chunk Waterspirits and Thunderbirds |
| Modern legend | A lake monster, sometimes nicknamed “Baraboo,” told as a local story |
| Documented sightings | None found |
A note on this entry
An earlier version of this page described a 30-foot serpent with glowing eyes and sharp teeth, and said that Indigenous people saw it as a guardian that punished those who disrespected the lake. We could not find sources for these claims, and we have rewritten the entry to reflect what is actually documented.
A lake made by ice
Devil’s Lake fills a gap in the ancient Baraboo quartzite bluffs. At the end of the last ice age, about 12,000 years ago, glaciers left thick ridges of debris, called moraines, that plugged both the north and south ends of the gap, trapping water between them. The broken rock and boulder fields that tumble down the bluffs were split off by repeated freezing and thawing.[1]
People have lived around the lake for at least 12,000 years, and the park contains effigy mounds built in the shapes of animals, including a lynx and a bird, along with linear and geometric mounds used as burial places.[1]
The Sacred Lake of the Ho-Chunk
The Ho-Chunk people, whose homeland includes this part of Wisconsin, call the lake Te Wákącąk, “Sacred Lake.” Other recorded names translate as “Spirit Lake” or “Holy Lake.”[2][3]
In Ho-Chunk belief, the lake was a home of Waterspirits, powerful beings of the waters that early writers sometimes called “water demons.” Ho-Chunk tradition does not treat Waterspirits as simply evil: they are powerful and can be difficult. A story retold locally describes a great battle at the lake between the Thunderbirds, who hurled lightning from the clouds, and the Waterspirits, who threw stones and raised waterspouts. The fighting lasted for days and the Thunderbirds won, and the shattered bluffs and scattered boulders around the lake are said to be the marks of that battle.[2][3]
Rock formations around the lake, such as Balanced Rock and the Devil’s Doorway, were linked in a 1938 study to respect once paid to these beings.[2]
These are sacred traditions of a living people and should not be reduced to a “monster.” Our sources for them are a 1938 article by Dorothy Moulding Brown in The Wisconsin Archeologist, as presented in an online Ho-Chunk encyclopedia, and local retellings based on the work of the park naturalist Ken Lange.[2][3]
The modern lake monster
Alongside these traditions, some local families tell stories of a monster in the lake, compared half-jokingly to the Loch Ness Monster and sometimes nicknamed “Baraboo.” A 2021 folklore interview recorded a young woman describing these as entertaining rather than frightening stories passed down from her mother.[4] Writers on Wisconsin’s mysterious creatures have also included the lake in their guides.[3]
The English name “Devil’s Lake” is often said to come from settlers rendering a Native name about spirits as a reference to devils, since the Ho-Chunk name means “Sacred Lake.”[3][4]
Explaining the stories
- A dramatic setting. Steep bluffs, dark water and vast boulder fields give the lake an eerie atmosphere that invites stories.
- Large fish. Northern pike and other big fish could account for occasional large shapes or splashes.
- Waves and wind. Wind funneling between the bluffs can raise sudden waves on an otherwise calm lake.
- Traditions retold. Ho-Chunk beliefs about Waterspirits, filtered through settler storytelling and tourism, may have helped create the idea of a “monster.”
For another lake with deep roots in Indigenous tradition, see Manipogo of Manitoba, and for Wisconsin’s best-known cryptid, the Beast of Bray Road.
References
- “Devil’s Lake State Park (Wisconsin),” Wikipedia.
- “The Sacred Lake (Devil’s Lake),” Hotcâk Encyclopedia, citing Dorothy Moulding Brown, “Legends of Wisconsin Rocks,” The Wisconsin Archeologist 19, no. 1 (September 1938): 10.
- “Protected by Thunderbirds,” Devil’s Lake State Park Area Visitor’s Guide, citing Ken Lange, A Lake Where Spirits Live, and Chad Lewis, The Wisconsin Road Guide to Mysterious Creatures.
- “Wisconsin’s Devil’s Lake,” USC Digital Folklore Archives (interview recorded 13 March 2021).
Correction note (October 2026): This entry was completely rewritten. The earlier version described a 30-foot serpentine monster with glowing eyes and attributed it to Indigenous legends of a punishing guardian, without sources. These claims have been removed. The illustration above is an artistic impression.