Aller (Asturian river)

Aller
Ayer
The Aller river in Bustiello
Map
Location
CountrySpain
StateAsturias
Physical characteristics
SourceCantabrian Mountains
MouthCaudal
 • location
near Ujo, Asturias, Spain
 • coordinates
43°12′0″N 5°47′0″W / 43.20000°N 5.78333°W / 43.20000; -5.78333
Length42 km (26 mi)
Basin size280 km2 (110 sq mi)

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