Negrone

The Negrone is an 11 kilometres (6.8 mi) long stream principally in Italy that flows through the regions of Piedmont and Liguria.

[3] The origin of Negrone is uncertain; a combination of negro (black) and the suffix -one, it is traced by some to the dark colour of the rocks that emerge in various parts of the creek bed, while others have suggested that the name is derived from the shadyness of the valley traversed by the stream.

[2] The Negrone originates as the Giareto or Ciairello stream on the eastern slope of the Cime de Missun in the Ligurian Alps of France, near the France–Italy border.

It then flows a northeasterly course into the municipality of Briga Alta, Piedmont, in Northwest Italy.

At Pian Laiardo—between the municipalities of Cosio d'Arroscia and Ormea—it is joined by the Tanarello river, giving rise to the Tanaro.