Domaine du Tunnel sits in Saint-Péray, the southernmost appellation of the Northern Rhône, where granite slopes and continental climate shape distinctive wines. The winery works with the region's classic varieties: Syrah for red wines, and Marsanne and Roussanne for whites—grapes that thrive in this demanding terroir. The Vin Noir Cornas, built from Syrah, expresses the power and structure the Northern Rhône is known for. Pur Blanc, a Marsanne-based white, and the Saint-Péray Roussanne showcase the aromatic complexity and mineral precision these varieties achieve in Saint-Péray's unique conditions. The wines have been assessed by Decanter, Wine Advocate, Wine Spectator, and Wine Enthusiast.