The municipal council of Hoz-Costean is made up of Montesa, Hoz de Barbastro, Salinas de Hoz, Costean and Guardia (uninhabited) all of which are located in the environs of the mountains known as the Sierra de Salinas.
The almost exclusive use of rough stone gives an urban landscape of pink tones and rough textures, in which the buildings are grouped into two well-defined areas. Many houses display beautiful ironwork, such as doorknockers in curious animal shapes.
Built in honour of Mary Magdalene, the parish church was constructed in the 17th century on the remains of a medieval castle. In its architectural design, different styles merge such as: Gothic (the ribbed vaults); Renaissance (cupola with cross); and Mudejar (gypsum decoration on the arches).
Hoz de Barbastro holds its local fiestas on the 22nd of July in honour of Santa Maria Magdalena.