Monte Perda Liana, often known as a geological tacco, is a distinctive mountain formation in central-eastern Sardinia. It stands at an impressive 1,293 m a.s.l, the highest among the tacchi of Ogliastra. The mountain's peculiar name, Perda 'e Liana, intrigues us. 'Perda' refers to a rocky mass, while 'liana' may potentially be linked to the name of a local Nuragic population, the Iliensi.
The mountain is not just visible from Nuragic centers but also from other places, such as s'Arcu e is Forros in Villagrande Strisaili and the Nuraghe s'Ulimu in Ulassai.
Monte Perda Liana got its name during the Jurassic period, around 130-150 million years ago, through a long process of sedimentation in a submarine environment. The fractures in the tower's walls form large prismatic-section blocks, shaped over the geological eras through water erosion.
The tower is also supported by a truncated conical base of sandstone nature from the Mesozoic era, featuring the most significant stratigraphic development found at the base of this truncated conical block, formed by schists dating back to the Paleozoic era.
Sources: Wikipedia, Wikidata, Wikimedia Commons
Written by Sardinian
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