 Another half-mile and a gentle descent into the col followed by a slightly steeper ascent separates the south summit from Twin's true, 3,640-foot (1,109 m) summit.The view just past it is not quite so sweeping, but also takes in Hunter Mountain, the Catskill's second highest peak, to the west.The trail then descends down through switchbacks, rock chutes and some more scrambles to Pecoy Notch, about 2,900 feet (884 m) above sea level.