Caldoveiro Peak Nature · Yernes y Tameza, Oviedo, Asturias A summit of 1,357 metres that Yernes y Tameza shares with Teverga, Proaza and Grado, in an inland range of 11,359 hectares that is easy to climb from the village of Villabre, included within the Peña Ubiña, La Mesa natural park, which also takes in the natural monument of the Marabio passes. Four zones can be distinguished within it: the Marabio passes, in the centre; the basins of the Xordón river and the Cavadura stream, in Grado; the basin of the Tameza river; and the valley of the Trubia and Teverga rivers, the largest of all. The concejo is made up of limestone accumulations with abundant potholes and karst depressions. An arboretum dedicated to Ricardo Acebal del Cueto was planted on its heights, and the Marabio passes hold the protective, still undeveloped, status of Protected Natural Landscape. Photo: Hector Amato (CC BY-SA 4.0) What to see and do in Yernes y Tameza