The Carlist War optical telegraph tower

The Castell de la Mola is a circular stone structure built using dry stone masonry. Its design is typical of local folk architecture, which makes it difficult for historians to pin down an exact date, though some records suggest it dates to the mid-19th century.

During the third Carlist War, the tower served as a station for optical telegraphy. It functioned much like the Torre de l'Esquirol in Cambrils, using a system of shutters that could be seen from many kilometres away to transmit messages across the territory.

Long before these wars, the site held different significance. It is believed that an Iberian settlement sat atop the Mola, with later use by Romans and Moors. Local legend even claims the mythical Carrasclet sought refuge here in the 18th century to hide from Bourbon troops.

Today, the ruins remain a protected cultural asset of national interest. It sits within the mountains that separate Baix Camp from el Priorat, marking a spot where communication and conflict have intersected for centuries.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons