Frostwatch is located in the recently established Bennett Valley appellation, located just south and to the East of the city of Santa Rosa in Sonoma County. Roughly defined by the Matanzas Creek watershed, it has been estimated that Bennett Valley had some 2,000 acres planted to wine grapes in the mid-1800s. Largely due to the efforts of these individuals, the wine cognoscenti recognized Bennett Valley as an area that was synonymous with fine Merlot and Chardonnay. More recently, Bennett Valley Sauvignon Blanc, Pinot and Syrah have been recognized for their exceptional quality.