Quinta do Vale da Perdiz sits in the Douro region of northern Portugal, where steep terraced vineyards and schist soils shape wines of mineral precision and depth. The winery works primarily with Touriga Nacional, the region's signature dark-skinned variety, alongside Tinta Roriz and Touriga Francesa—grapes that thrive in the Douro's continental climate and demanding terrain. The Cistus Reserva Tinto, a blend of all three varieties, balances the structure and dark fruit character these grapes are known for. The single-varietal Cistus Grande Reserva Tinto showcases the concentration and aging potential of pure Touriga Nacional, while the Cistus Rosé demonstrates the versatility of the same grape in a lighter expression. Both Wine Spectator and Wine Advocate have assessed the winery's output, reflecting the quality standards of Douro winemaking.