An exception to depopulation and economic neglect in Teruel is Sarrión in the province’s far south, where an ideal environment and the experience of its collectors has turned the village (just over 1000 inhabitants) into the so-called “Spanish capital of the black truffle”, capable of competing in quality with the best French truffles  The booming industry in Tuber melanosporum has a positive effect on the environment as some 3,000 hectares of holm oak wood has been planted in recent years to create truffle orchards. Specially trained dogs are used to harvest the crop, which brings in some 500 euros/kg to locals, although prices can go for double that in the shops. Sarrión has managed to increase in biodiversity while improving its rural economy.

Spain as a whole produces around 35% of world black truffle output.