Canon EOS 5D Mark III - 100 - f/11.0 - 30/1 - 14 mm
The 'Lost Lake' off Oregon's Highway 20 has a deep, dark secret.
Most of the year, it looks like any other lake; peaceful 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.
Geologists claim the area's volcanic landscape is to blame for the lake's rapid drainage.
They believe a lava tube beneath the lake formed when flowing lava hardened near the surface and flowed downwards.
As the eruption cooled, the hardened pipes emptied, leaving behind tubes in the form of vast tunnels.
Lid sinds: 26-04-2016