After a continuous activity for 25 years, Belgrano I was closed due to the fast deterioration of the ice barrier it was sitting on; new, often hidden cracks and crevices endangered the on-duty personnel and material. In order to continue the scientific programs and keep Argentina presence in the area, and after careful studies on alternative locations done by the Argentine Army, it was decided to lay the new facilities on solid land. Amid the vast expanse of ice that covers the region, only two small masses of granite emerge: the Moltke and Bertrab nunataks, both first sighted and named by Filchner's expedition in 1912.