Mt. Slaughter, First Ascent. It was reported that Guy Cotter and Terry Gardiner made the first ascent of Mt. Slaughter (ca. 3600m) south of the Vinson Massif. The two sled-hauled for a day, then spent another day reaching the base of Mt. Slaughter’s north face. Cotter led 11 70-meter pitches over 50-60° ice in a thin gully that divides two buttresses to the right of the summit. A few more pitches brought the men to the top. (Rock and Ice 91)