Wibtal is the highest-altitude portion of the Sommerberg vineyard in Niedermorschwihr, a perfect amphitheater that clings to the very top of the vineyard’s steep granite slope. When Jean Boxler looks out his kitchen window in the morning, he sees the sun glinting off its trellises. The brilliance of this site is its ability to produce sumptuously rich and perfumed Pinot Gris that maintains a vibrant acidity and stony backbone. It is as grand as Pinot Gris gets.