Selva de Oza (Oza Forest) Nature · Valle de Hecho, La Jacetania, Huesca The Selva de Oza is an extensive forest of beeches and firs at the head of the Valle de Hecho valley (La Jacetania, Huesca), one of the most emblematic spots in the Aragonese Pyrenees, included within the Parque Natural de los Valles Occidentales and crossed by the Aragón Subordán river, surrounded by peaks of between 2300 and 2700 metres such as Bisaurín or Castillo de Acher. It preserves three dolmens and the remains of a Roman road from the time of Antoninus Pius, also used as a route to Santiago. Alongside the beeches and firs grow yews, maples and birches, and the forest is home to wildlife such as bears, chamois, roe deer and bearded vultures, while the river, rich in trout, flows under a climate of abundant rainfall, with an average annual temperature of 8.1 degrees. Photo: Quique251 (Wikimedia Commons) (CC BY-SA 3.0) What to see and do in Valle de Hecho