This is a different kind of ice shot. This is a glacier segment which has calved, floated out into the lake, and been trapped in the lake ice when winter arrived. We skated out to the trapped bergs, before shedding our skates to investigate. It was at least 15′ from the surface of the lake to the tunnel roof.

Based on the size of the tunnel, and the shape of the scallops on the walls, I suspect this began as a vertical shaft (moulin) draining water from the surface of the glacier to the interior. The wind and sun continue to work on the ice even in the winter.

Tripod mounted TL120-55