Jirishanca Chico Tragedy. In August, after American Robert Anderson, Scot Dr. John Hosie and Peter Cornwall had made an unsuccessful attempt on the east face of Yerupajá Chico, the three climbed Jirishanca Chico unroped, stopping just short of the rotten cornice on the very summit. While descending rotten rock on crampons just below the summit, Dr. Hosie fell 1500 feet down the north face to his death.