San Juan Group, Cordillera Blanca. Lisle Irwin and I went in August, 1966 into the Quebrada Shallap with David Bathgate and Terry Burnell. We tried San Juan Sur without success but did climb P 5459 (17,911 feet) at the head of the Quebrada Minas, east of San Juan Norte on August 11, 1966.

John Ricker, New Zealand Alpine Club