A storybook forest filled with large stones covered in moss, squirrels, colorful birds, mushrooms, and much more awaits in the Selva de Oza, in the Valle de Hecho.
To reach this iconic autumn landscape in Aragón, it is necessary to traverse the comarca of Jacetania and arrive at the Valle de Hecho, rewarding travelers along the way. The village of Hecho, beside the Aragón Subordán River, is known for its traditional architecture and ethnological museums. From there, following the path parallel to the river, one arrives at the village of Siresa, where the imposing Monastery of San Pedro de Siresa stands out.
The Monastery of San Pedro de Siresa, with its sober Romanesque architecture, has been described by Miguel de Unamuno as a “rugged temple, lacking capitals or decorations.” Next, one crosses the impressive Boca del Infierno before reaching the Selva de Oza.
Oza is a jewel of the Natural Park of the Western Valleys. A walk through its dense beech forest, with ochre tones and a scent of dampness, is ideal for a photographic experience. This place reveals prehistoric footprints, such as the Corona de los Muertos, a megalithic site in the forest.
Beyond Oza, the valley of Guarrinza offers summer pastures and megalithic monuments such as the Túmulo del Salto. Concluding in the valley of Aguas Tuertas, the winding water path invites planning for the next exploration.











