Shergins shaft dug in 1827 is the world's deepest shaft in the permafrost zone. Located in Yakutsk, Siberia/Russia. 116.5 meters in depth. In 19th century the shaft appeared to be the first place, where scientists started permafrost researches. On Nov. 4th, 2009 it was reopened, the team of researchers descended into the ice hole and took new ground samples. Outdoor temperature was minus 19 degrees Centigrade, but inside the shaft it was minus 4 degrees only. What is the future of the deepest ice shaft? Big plans are expected to be realised. Like the cunstruction of the elevator that will bring people down to see the frozen-ground layers. (less info)