At the head of the valley are the Caldarola Pass and Mount Serenda, from whose slopes the San Gabriele branch of the Luretta rises.

The oldest finds, preserved in the Tidone Valley Archaeological Museum in Pianello, date back to the Bronze Age.

[3] In Roman times the valley was inhabited with the foundation of several settlements: the Tabula alimentaria traianea mentions the Pagus Luras, a Latin hydronym for the Luretta river,[7] the vicus of Pomarius (Pomaro) and Canianum (Montecanino),[3] the fundus Acutianus (Agazzano)[8] and Licinianus (Lisignano).

[3] In 1164, Frederick Barbarossa led an attack in the valley that resulted in the destruction of numerous fortresses, including Montecanino and Monteventano.

The fighting between the two opposing factions continued until the thirteenth century: in 1212 a battle took place near the castle of Rezzanello between the Guelphs, who had taken refuge there, and the Ghibellines, who prevailed.

[13] The valley is part of the culturally homogeneous territory of the four provinces, characterized by common customs and traditions and a repertoire of very ancient music and dances.

[29] The economy of the valley is essentially agricultural, with cattle and horse breeding, riding stables, wine and cheese production.