The vineyards just inland from the Sacramento River Delta, along the deep banks of the Sacramento River, comprise the Clarksburg AVA. The River Delta channels in cold air and fog from the Pacific Ocean creating a cooling effect in this area. Warm summer days quickly change to chilly evenings and make a great environment for grape growing. While a range of grape varieties grow here, Chenin blanc stands out the most, distinguishing itself in the appellation.
The Clarksburg Wine Growers and Vintners Association, made up of nearly 50 grower members and over a dozen wineries, has been working since the late 1980s to promote the high quality wine of its region.
Port is a sweet, fortified wine with numerous styles: Ruby, Tawny, Vintage, Late Bottled Vintage (LBV), White, Colheita, and a few unusual others. It is blended from from the most important red grapes of the Douro Valley, based primarily on Touriga Nacional with over 80 other varieties approved for use. Most Ports are best served slightly chilled at around 55-65°F.