Eglisau: Vines of the High Rhine

Every guide to Swiss wine begins with the same emphatic but overly simple premise: there are six wine regions in Switzerland. That means one of them, Deutschschweiz, is forever miscast as a single entity, even though it encompasses 19 cantons and covers two-thirds of the nation’s surface area. Meanwhile, four of the other official regions are single cantons — Geneva, Vaud, Valais, and Ticino — each with its own story to tell; a sixth — the Three Lakes region — is geographically contiguous, linguistically mixed and, while quite small, celebrated for its diversity. Why, I ask, is there so little…