Wade Wolfe in the tasting room of his Thurston Wolfe Winery in Prosser, Washington. Melissa Hansen The thirtieth anniversary of Yakima Valley as an American Viticultural Area is an opportunity to inform consumers and trade groups  about the qualities of Yakima Valley grapes and wine and spread the new about changes in the region, says a wine ­industry veteran. Wine Yakima Valley, a grower and winery association dedicated to promoting the region, is putting the spotlight on Yakima Valley this year through a variety of events. In March, the group sponsored an educational session on the history of the Yakima […]