Cerro Helbling, Northern Patagonian Continental Icecap. An Argentine expedition explored a region east of the Northern Patagonian Continental Icecap around Lago León. The party first investigated the lakes by a pneumatic motor boat. On January 30 Peter Bruchhausen and Hermann Joos made the first ascent of a 8200-foot peak three miles north of the eastern tip of Lago León from a 5000-foot camp. The other members of the party were Erica Tolzer, Helga Brimmer and Helma Joos.