The Peretes plot has a very unique soil. This soil, called in other parts of Catalonia Panal, is made up of sand and silt transported by the wind from long distances (the Ebro Delta and/or the Pyrenees, not very well known) during the interglacial dry times, forming small deposit areas of convex form over Miocene material, with sandy, permeable soils with presence of lime (which forms singular accumulations called “loess dolls”). The color of these soils is salmonated (orange). The presence of fluvial terraces at higher levels has caused the covering of these soils with a gravel carpet. These soils are permeable, deep, with an abundance of calcium carbonate and little capacity for water retention, which makes it difficult to puddle. This allows the roots to dig deeper in search of water and food favoring the perfect soil-plant balance.