Why is America's 'Lost Lake' disappearing? Scientists say a lava tube is swallowing the water - but no one knows where it ends up

The 'Lost Lake' off Oregon's Highway 20 has a deep, dark secret. Most of the year, it looks like any other lake; peaceful, quiet and still. But come winter, and a mysterious hole begins draining it of all its water, leaving a barren landscape that has baffled scientists for centuries. Some believe this water may seep into the porous subsurface underground from lava tubes (inset), refilling an aquifer.