Côtes de Castillon is a wine-producing region on Bordeaux's Right Bank. Known for its value-driven wines, it offers a range of red blends dominated by Merlot, often characterized by fruity flavors and approachable tannins. While not as prestigious as its neighbors, such as Saint-Émilion, Côtes de Castillon wines offer excellent quality for the price, making them popular choices for everyday enjoyment.