The Rhône Valley is located in the southeast of France and is a key wine-producing region. It follows the north–south course of the Rhône river for almost 150 miles (240km) from Lyon to the Rhône Delta (the Bouches-du-Rhône), near the Mediterranean coast. Like every wine region, the wines of the Rhône Valley obtain their special qualities and unique flavour profile from their terroir, climate, the individuality of the winemaker, and the Rhône Valley wine grapes planted in the vineyards. This region is a huge, diverse viticultural area and has an infinite range of wine styles. The price range for wines is as diverse as the terroir. The wines grown and produced in this region are Syrah, Viognier, Marsanne, Roussanne, Grenache and Mourvèdre which make up the blend GSM using Syrah.