Made from multiple ancient varietals present on a very old vineyard located at the outskirts of Reguengo village, in Serra de S. Mamede (the unique mountain above 1000 meters’ altitude in the South of Portugal). 
The vineyard faces eastward, at an altitude of 598 meters, and the soil is granitic (Ordovician). 
Yields are very low. There are about 14 different varieties from a mass selection made until the early twentieth century. We can indicate a variety dominance: Trincadeira, Aragonez, Alicante Bouschet, Grand Noir, Tinta de Olho Branco e Castelão.