Vispa
Vispa is a river in the canton of Valais, Switzerland. It gives the name to the city of Visp.
Vispa comes from the confluence of the Matter Vispa, which flows into the Mattertal valley and the Saaser Vispa, which flows into the Saastal valley, near Stalden. It runs about 9 kilometres (5.6 mi) in the Vispertal valley and flows into the Rhône near Visp.
The length is 84 kilometres (52 mi).