Saturday, August 29, 2009
Way-Cool Blue Shelf
The other day I took a tour of the Permafrost Tunnel. It was excavated into a hillside, where the same ground has been frozen since the Pleistocene. You can see frozen animal parts here and there inside--mammoth pieces and prehistoric oxen.
The interior of the tunnel:
Part of a huge ice wedge. You can see now why if you're building on permafrost, it's very important not to melt it! Most of the cabins (including mine) are not only insulated to the nines, but also on stilts, so we don't melt the ground.
An ice wedge over our heads:
The trees are starting to turn for Fall: