The Esva is a river in northern Spain flowing through the Autonomous Community of Asturias.

Esva
Map
Location
CountrySpain
StateAsturias
Physical characteristics
Source 
 • locationTineo
 • elevation359 m (1,178 ft)
Mouth 
 • location
Bay of Biscay
 • elevation
0 m (0 ft)
Length35 km (22 mi)
Basin size450 km2 (170 sq mi)
Discharge 
 • average10.65 m3/s (376 cu ft/s)