Puscanturpa Norte, North Buttress. In June, I climbed solo the north buttress of Puscanturpa Norte. When I climbed it I had thought it was a first ascent but I later read that it had been done by Italians in 1981. (See A.A.J., 1983, pages 196-7.) The previous ascent was spread over three weeks and required at least one full pitch of aid. I climbed from a bivouac at the base. I spent six hours on the rock from the beginning of the difficulties to reach the summit. I did it all free. The rock was excellent apart from scree on the ledges and the climbing ranged from 5.7 to 5.10 with the average difficulty being about 5.8.