Scrub covers much of the eastern slopes. Large bushy colonies, of importance for their production of berries such holly berries and blueberries. Chestnut groves and oakwoods abound.
Among the fauna a mention should be made of the emblematic species which are not found in other parts of Galicia, including the brown bear and the capercaillie, last seen here, in this region. Wild boar, roe deer, deer and rabbits abound.