Just south of San Luis Obispo, the Santa Maria Valley is the most densely planted vineyard area in Santa Barbara county. Cool breezes and fog rolls into the valley almost every day, keeping acids crisp and extending the growing season perfectly. One of the most interesting facets of Santa Maria is that, while there are a number of well-known wineries here, the fame of the region began with its large, well-regarded independent vineyards like Bien Nacido which sell grapes to wineries all over the state. Pinot Noir and Chardonnay occupy the most acreage and quality is excellent across the board.