Terraced hillside vineyards of the Priorat Nature · Gratallops, Priorat, Tarragona Image of Gratallops, not of the place itself. The costers, terraced slopes of llicorella (slate soil), are the characteristic landscape of the Priorat in municipalities such as Gratallops, in the historic heart of the comarca. The municipality, with a relief of ravines and ridges delimiting small valleys, ranges from the 337 metres of the town centre to the 424 metres of the highest areas. The cultivation of the vine, together with olive and almond trees, has been the main economic activity since the 18th century; since 1917 there has been an agricultural cooperative that produces wines with the Priorat designation of origin. Since the late 1980s, the wines from these terraced slopes have gained international prestige, with a significant share destined for export; the municipality has around twenty-two wineries, including those of Álvaro Palacios and Clos Mogador. Photo: jordi domènech (CC BY-SA 3.0) What to see and do in Gratallops