 The main resource extracted from the forest is rubber, as well as nuts and copaiba oil.The reserves are Angelim, Aquariquara, Castanheira, Freijó, Garrote, Ipê, Itaúba, Jatobá, Maracatiara, Massaranduba, Mogno, Piquiá, Roxinho, Seringueira and Sucupira.Many of the residents were born in the region, descendants of the "rubber soldiers" who came to extract rubber for the foreign market in the 1940s.