Slot canyons in Wisconsin?? Yes!! Wisconsin is not Utah but we proudly boast about two slot canyons. Witches Gulch and Cold Water Canyon are both located in the Water Park Capital of the World, the Wisconsin Dells. Before the water parks became the major attraction of the Dells, it was renown for its natural beauty. H.H. Bennett made the Dells famous with his landscape photograph and if you venture past the waterparks and shops you can enjoy the same beauty he photographed.