(NBBJ) - Two new tightly focused American Viticultural Areas budded in the North Coast last week. Effective Jan. 13, the U.S. Trade & Tax Bureau established AVAs for Coombsville in southern Napa Valley and for Fort Ross-Seaview in western Sonoma County. The 11,075-acre Coombsville subappellation is inside the Napa Valley and North Coast AVAs. The Coombsville district has 26 commercial vineyards with 1,360 acres of vines, including Farella-Park Vineyards, one of the petitioners for the subappellation; Stag’s Leap Wine Cellars’ Arcadia Vineyards; Far Niente Winery’s Barrow Lane, Carpenter, and John’s Creek Vineyards; Berlenbach Vineyards; and Richard Perry Vineyards.