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The long narrow groove on the east side of Chunderosa Buttress. It's possible but not necessary to place some mid sized wires for extra protection near the top. There is a DBC belay on the lip that makes the descent easier – but you should still do the full finish and pull over onto the summit. Watch your rope length on the descent.
Bryce Martin, John Jamieson, Bev Birnie, 17 March 1991