River Vyrnwy

River Vyrnwy
Vyrnwy near Pont Llogel
Native nameAfon Efyrnwy (Welsh)
Location
CountryWales, England
CountiesPowys, Shropshire
Physical characteristics
SourceLake Vyrnwy
Mouth 
  location
confluence with River Severn near Melverley
  coordinates
52°44′11″N 2°59′48″W / 52.7363°N 2.9966°W / 52.7363; -2.9966
Length40 mi (64 km)

The River Vyrnwy (Welsh: Afon Efyrnwy, pronounced [ɛˈvərnʊɨ]) flows through northern Powys, Wales, and Shropshire, England. The name derives from Severn, the river of which it is a tributary.