DID YOU KNOW? High above the coastal fog and blue Lake Hennessey in Napa Valley's eastern hills, Chappellet Winery grows Cabernet Sauvignon grapes on a boulder-strewn hilltop known as Pritchard Hill. It's not an AVA; it's a state of mind. For five decades, the Chappellet family has nurtured this rust-colored earth to support 104 acres of certified organic vineyards.