2006 Russian River Valley Viognier Port Trentadue Winery Geyserville, CA 100% Viognier Harvested October 16th, this Port was cold fermented in stainless steel tanks, and aged 8 months in European Oak barrels. 1157 cases produced Price: $25 18.5 % alcohol 375 ml 2007 Tasting - This Port is served chilled. It has a light yellow color and a sweetish bouquet coupled to a light grapy smooth flavor and a sweet aftertaste. More about Viognier.