Southern Rhone?Red?Blendrefers to a wide range of grape varieties often blended together to make wines in the southern reaches of the?Rhone Valley?in the south of France. While the blend could theoretically consist of any of a wide range of grape varieties, it is usually made up of?Grenache,?Syrahand?Mourvedre, in varying proportions, typically with Grenache and Syrah as the dominant partners.