Peak 9980, East Face. This peak, which lies between the two forks of Cascade Canyon, was named Yosemite Peak by the party that made the first ascent of the east face on September 6, Fred Beckey and Ken Weeks. Two broad tree-covered ledges divide the smooth east face into three equal sections. The route followed a long chimney, which diagonals up from left to right, as far as the second ledge. This ledge was then traversed out to the right to the crest of the ridge which forms the extreme right edge of the whole face. This ridge was then followed to the summit.