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To make new terraces in this rocky terrain, dynamite is often needed to blast away great
outcrops of schist, the slate-like stone wich forms the bedrock of the Douro's best
vineyard soils. The vine roots can dive 40ft down through rock fissures in search of
water, draining the very essence of the soil into every grape.
The Douro boasts a wealth of traditional grape varieties. Among the finest are the
heavily-scented Tourigas - Touriga Nacional and Touriga Francesa - producing wine of
enormous scale and concentration; the Tinta Roriz with its firm tannins and distinctive
cedary nose; the supple, flowery Tinta Barroca; and the Tinto Cão, one of the oldest
varieties cultivated in the Douro Valley.
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