Discover Yésero

Yésero brings together a cultural history centered on Pez, traditional mountain architecture and a route through woodland and ravine scenery. Casa de la Pez tells the story of a traditional production process, while the Ruta de la Pez is described with an approximate duration. Historic buildings and a local festival date add to these themes.

Casa de la Pez and traditional production

Casa de la Pez is a restored 16th-century building in Yésero. Since 2005, it has housed a permanent exhibition on the traditional production of Pez. The exhibition explains how Pez was obtained from pine resin and what it was used for: marking livestock, therapeutic purposes and waterproofing. It thus connects the building with a production tradition whose products were used in various fields.

As of August 2026, admission to Casa de la Pez also included the Iglesia de San Saturnino. Check the current ticket information before your visit.

Buildings and mountain architecture

The tower of the Iglesia de San Saturnino preserves the only surviving Mozarabic feature in Yésero: two loophole windows with horseshoe arches. The Ermita de Nuestra Señora de las Nieves was built in the 17th century and is located near the confluence of the Sía and del Infierno ravines. Casa de la Pez and the Ermita thus represent different centuries of construction.

Yésero also has examples of traditional vernacular mountain architecture. Some were built using centuries-old dry-stone walling techniques; characteristic structures include bordas and casetas. These forms add another dimension to the town’s cultural landscape alongside its churches and historic buildings.

Ruta de la Pez and Senda Brioleta

Allow approximately two and a half hours for the Ruta de la Pez. It begins at the Plaza in Yésero. At the roadside shelter at the junction with the N-260, there is an information board and a sign pointing to the start of the route; check the signs on site. The Ruta follows a gently ascending or easy-to-walk path through pine and beech forest along the Barranco del Infierno. The approximate duration provides a guide to the time required, while the forest and ravine give the route its landscape setting.

The Senda Brioleta was announced in Yésero as an accessible route approximately three kilometres long. Check its current condition before travelling. The route details answer different planning questions: an approximate duration is given for the Ruta, and an approximate length for the Senda.

Yésero in the Biosphere Reserve

Yésero is one of the eleven municipalities in the province of Huesca included in the Ordesa-Viñamala Biosphere Reserve. The wider region around the reserve is characterized by high-mountain landscapes with glaciers and landforms shaped by glacial erosion. It also includes temperate mixed forests, stands of black pine, fir forests and high-altitude pastures. This regional context provides a broader landscape setting for the forests and ravines along the Ruta de la Pez.

San Sebastián in Yésero

The small celebration of San Sebastián is held on January 20. The night before, a “chera,” or bonfire, is lit at night in the center of the Plaza del Fenero. As details of the annual program may change, check the dates if you would like to plan your trip around the celebration.

Discover more destinations: Villanovilla, Astún, Fanlo, Laspuña, Roda De Isábena, Adahuesca, Estada, Banastón

For the main travel overview: Huesca.