00:00A waterfall that swallows half the river forever.
00:03This is the Devil's Kettle in Minnesota.
00:05Half the river flows normally.
00:07The other half vanishes completely.
00:09People have thrown in logs, balls, even GPS trackers.
00:13Nothing ever comes out the other side.
00:15Scientists still don't know where it goes.
00:18It might connect to underground caves.
00:20Or maybe it just drains deep into the earth.
00:22No one has solved this mystery yet.
00:25A waterfall that swallows everything.
00:27The Devil's Kettle, where half a river disappears forever.