The vines at Domaine Beudon are perched on a small swell, half-way up a sheer mountainside in the Valais region of Switzerland. The only way to access the domaine is a 3 hour walk up an absurdly precarious footpath with fixed ropes, or a small, rustic cable car. The vineyard sites are very steep, up to 50 degrees in spots and they top out at 900 meters above sea level. This is extreme grape growing! Jacky Granges often repeats that people think he is crazy. Let's be truthful: he is! But, the wines speak for themselves, and that is the point, really. No wood is used on any of his wines--vinification and aging here take place in stainless steel tanks and indigenous yeasts. The young wines here are powerful, exuberant and completely unique. The aged wines are long, expressive, wise and characterful. the 2005 Domaine de Beudon Riesling x Sylvaner (also known as Muller-Thurgau) is biodynamically farmed. It is expressive, with limestone and granite components. It is reminiscent of an elegantly aged, dry Riesling. Bottled unfiltered.