After two millennia of taking advantage of its wealth in our country, in 1995 there were few Pinnus Pinaster forest areas that were still being exploited. One of them is in the province of Segovia, in the so-called Tierra de Pinares. There, among all its forest mass, the chimney of the Zarzuela del Pinar factory revealed an activity that was still alive among its people: resin-making.