Mas Grange Blanche operates in the Southern Rhône, where Mediterranean warmth and ancient soils shape wines of depth and structure. The winery's portfolio centers on the region's classic varieties: Grenache, Syrah, and Mourvèdre, blended in proportions that reflect Southern Rhône tradition. Vieux Marc de Châteauneuf-du-Pape represents the pinnacle of the range, a wine that has drawn attention from Wine Advocate, Wine Enthusiast, Wine Spectator, Decanter, and Falstaff. La Font de Bessounes Châteauneuf-du-Pape, a Syrah and Grenache blend, sits at the heart of the estate's output, while Côtes-du-Rhône Rouge extends the winery's reach across the broader appellation. These wines embody the Southern Rhône's signature character: ripe dark fruit, savory spice, and the mineral undertones of limestone-rich terroir.