See the guide to Julia's Portuguese marathon for further articles in the series – those already published and those set for publication this week. These 292 notes cover a large swathe of central and northern Portugal, bounded by the Atlantic Ocean in the west, the Spanish border in the east and, in the north, by a line roughly parallel to but south of the Douro. It used to be covered by just one regional denomination - Beiras - but in recognition of the huge differences between the Atlantic-influenced west and the more mountainous, granite-dominated east, four new regional classifications (Vinho Regional, now also referred to...