Vermenagna
The river as seen from the Cuneo-Limone-Ventimiglia railway
Location within southern Piedmont
Location
Country	Italy
Region	Piedmont
Province	Province of Cuneo
Physical characteristics

Source
• location	N side of the Colle di Tenda (Maritime Alps/Ligurian Alps)

Mouth	Gesso
• coordinates	44°19′31″N 7°30′03″E / 44.3254°N 7.5009°E / 44.3254; 7.5009
Length	27.1-kilometre (16.8 mi)^[1]
Basin size	166.17 km² (64.16 sq mi) ^[1]

Discharge
• location	near Borgo San Dalmazzo
• average	4.5^[2]

Basin features
Progression	Gesso-->Stura di Demonte-->Tanaro→ Po→ Adriatic Sea

The Vermenagna is a 27.1-kilometre (16.8 mi)^[1] long river in northwestern Italy (Piedmont).

Geography

The Vermenagna is a tributary to the river Gesso, in the river Po basin. Its source is a small lake higher than 2000 m close to the Rocca dell'Abisso, not faraway from the Colle di Tenda; after Limonetto the flows crosses the comunes of Limone Piemonte and Vernante, where it gets from the left bank its main tributary, the rio di Valle Grande, which collects the waters of the valley of Palanfrè (or ‘’Val Grande’’). Its course continues reaching Robilante and Roccavione; on the border between the latter comune with Borgo San Dalmazzo the Vermenagna ends in the Gesso, at 610 of elevation. The course of the Vermenagna separates the Maritime Alps from the Ligurian Alps.^[3]