Afon Dulas, Llanidloes

Afon Dulas
Afon Dulas near to its confluence with the River Severn
Location
CountryWales
RegionPowys
Physical characteristics
Mouth 
  location
River Severn near Llanidloes
  coordinates
52°26′33″N 3°33′07″W / 52.4424°N 3.5519°W / 52.4424; -3.5519
Basin size64.4 km2 (24.9 sq mi)
Discharge 
  locationRhos-y-pentref
  average1.41 m3/s (50 cu ft/s)
  maximum47 m3/s (1,700 cu ft/s)

The Afon Dulas is a river in Powys, Wales (Afon is Welsh for river). It is a headwater tributary of the River Severn, which it joins at Llanidloes opposite the confluence with the Afon Clywedog. Its principal tributary is the Afon Brochan. The total length of the Dulas and Brochan is 19.6 km. Other tributaries include Nant Cydros, the Rhydyclwydau Brook and Nant Gynwydd.