Pena Corneira Nature · Carballeda de Avia, Ribeiro, Ourense Granite mountain range that extends as a continuation of the Serra do Suído between the municipalities of Carballeda de Avia, Leiro and Avión, in the O Ribeiro district, between the basins of the rivers Avia and Miño. Its relief, formed by a batholith of Hercynian granites, combines rocky ridges, domes, sunken corridors and boulder chaos, including the crest that crowns the mountain. In the lower areas grow oak woods with some Pyrenean oak, chestnut and laurel trees, with gorse and broom scrub in the undergrowth, while at higher altitudes birch and holly appear alongside the oak; the streams retain riverside woodland of alders and ash trees. It was declared a natural monument in December 2007 and covers almost a thousand hectares. Photo: Elisardojm (CC BY-SA 4.0) What to see and do in Carballeda de Avia