1976 American Alpine Journal, American Alpine Club, pp. 537, The Mountaineers Books, 1997, ISBN 9781933056319, ... Because of its trapezoidal form, Chogolisa has two nearly equally high summits connected by a 3000-foot ridge. In 1958 the Japanese Fujihira and Hirai climbed to the northeast summit by the Buhl-Diemberger route ...
