A legend tells how Cheso shepherds saved King Alfonso I el Batallador from a bear attack when he was hunting in La Boca del Infierno gorge.  From then on the royal huntsmen were chosen from the Hecho valley.  This story has a grain of truth in it – find it by looking at our historical remains, visiting our museums and enjoying a guided tour.

The Romanesque monastery church in Siresa was founded in Carolingian times and the present structure dates from the 1100s. It is said Alfonso I el Batallador, king of Aragón was baptised and schooled here when there would have been up to 150 monks. The monastery had a notable library and would have given shelter to the earliest pilgrims going to Santiago de Compostella. In the church there is a 13th Century sculpture of Christ, holy relics and several 15th Century Aragonese School altarpieces. The church has been a National Monument since 1933. Summer timetable, every day from 11 a.m. to 2 p.m. and from 5 p.m. to 8 p.m. Rest of the year, from 11 a.m. to 1 p.m. and from 3 to 5 p.m.
San Pedro de Siresa
Ethnology, history, modern sculpture … You´ll be surprised at the culture, art and tradition combined here in the valley-
MEGALITHS. Dolmens, menhirs and Stone circles.
Between Oza and the French border there are more than 120 stone circles, several dolmens , menhirs and chromlechs making the upper Aragón Subordán valley the biggest megalithic complex in the Pyrenees. In Oza, as well as the dolmens in the campsite and camp ground, there are 120 stone circles in the Corona de los Muertos while in Guarrinza you will find cromlechs, menhirs and stone circles..
Corona de los Muertos Selva de Oza
Megalithic trails Guarrinza
Megalithic trails Aguas Tuertas
Historic trails
Human presence here dates back to prehistoric times and since then the Romans, Charlemagne, the first pilgrims to Santiago and war refugees have all left their mark on the valley.
Megalithic Route Selva de Oza and Guarrinza
Roman Road Boca del Infierno
Villages Route How we lived