Madrone Ridge is a Sonoma Valley family run winery making single vineyard Zinfandel and Bordeaux Blends. The winery hand craft less than 250 cases of each release in their Wine Cave. Madrone Ridge vineyards flank the edge of Arrowhead Mountain in the Mayacamas Mountains separating Napa and Sonoma counties. Ridge wines are sold on their website or their wines can be sampled and purchased at the Enoteca Tasting Room on the historic Sonoma Plaza at 35 E. Napa St., Sonoma from 11- 5:30 Wednesday through Monday.