Lake Alviano

Italy / Umbria / Guardea /
 lake, World Wide Fund for Nature (WWF), interesting place
Reservoir created in 1963 by a dam on the river Tiber.
The progressive ristagnarsi water has favored the presence of migratory birds, which has led to create the WWF oasis of Alviano.
Nearby cities:
Coordinates:   42°36'14"N   12°14'54"E