The Devil's Kettle falls

There is a mysterious waterfall in Judge Magney State Park in Minnesota. Half of the water drops 50 feet into the Brule River; the other half falls into a cauldron and disappears.It is believed the water rejoins the main channel of the river or has a separate outlet into Lake Superior, but it has never been located. It is referred to as the Devil's kettle.

Researchers have dropped brightly colored dyes, ping pong balls, and other objects into the Devil's Kettle without result. There is even a legend that someone pushed a car into the fissure, but given that the Devil's Kettle is wholly inaccessible by road, most commentators dismiss this as hyperbole. Not only is the outlet unknown, but there is currently no satisfactory geological explanation for the Devil's Kettle.

Its indeed the Devil’s Kettle lol ! !! !!!