Grand Napa Vineyards “Master Red” is a Bordeaux-style proprietary blend produced by Grand Napa Vineyards, a Napa Valley winery headquartered in Rutherford and led by winemaker Dwight Bonewell. The wine is sourced from vineyard sites across Napa Valley, including fruit from appellations such as Oakville, Atlas Peak, Mount Veeder, Spring Mountain, Diamond Mountain, and Carneros, depending on the vintage. Most vintages are built primarily around Cabernet Sauvignon with supporting Bordeaux varieties such as Merlot and Malbec, reflecting the winery’s goal of creating a Napa Valley blend that showcases multiple top growing regions in a single wine.