River Towy

River Towy
River Towy at Carmarthen
Course of the River Towy
Native nameAfon Tywi (Welsh)
Location
CitiesLlandovery, Llandeilo, Carmarthen
Physical characteristics
Source 
  locationCambrian Mountains (SN802631)
  coordinates52°15′11″N 3°45′23″W / 52.25299°N 3.75642°W / 52.25299; -3.75642
  elevation488 m (1,601 ft)
MouthCarmarthen Bay
Length120 km (75 mi)
Basin size515 km2 (199 sq mi)
Discharge 
  average45 m3/s (1,600 cu ft/s)
Basin features
Tributaries 
  leftBrân, Sawdde
  rightCothi, Gwili

The River Towy (Welsh: Afon Tywi, IPA: [ˈtəwɪ]; also known as the River Tywi) is one of the longest rivers flowing entirely within Wales. Its total length is 120 km (75 mi). It is noted for its sea trout and salmon fishing.