It springs from the confluence of the streams Platano and Melandro. Then it flows in a context of great environmental value between spectacular canyons.

The bridge linking Roscigno to Sacco in the territory of the latter crosses the Sammaro, exactly above the spring.

The ancients venerated it as a water divinity and represented it with a prolific white beard and, in their hands, a vase where precious water was flowing.

Apart from its Lucanian origin, Tanagro is the river of Cilento and Vallo di Diano National Park, because it flows into it for most of its 92 meters course.

Calore river is the son of Cilento entirely, which must be accompanied by the adjectives "Lucanian" or "Salernitan", to distinguish it from the northernmost homonym that flows between Irpinia and Sannio.

With its 37 kilometres, it is among Cilento main watercourses, of which it is particularly rich. It rises from the slopes of mount Cervati, 900 metres of altitude from the spring of Varco La Pela in the municipality of Sanza.