River Teifi

River Teifi
Llyn Teifi, the source of the Teifi
Mouth of the Teifi shown within Wales
Native name	Afon Teifi (Welsh)
Location
Country	Wales
Counties	Ceredigion, Carmarthenshire, Pembrokeshire
Physical characteristics
Source
• location	Llyn Teifi
• coordinates	52°17′30″N 3°47′24″W / 52.2918°N 3.7900°W / 52.2918; -3.7900
• elevation	455 m (1,493 ft)
Mouth
• location	Cardigan Bay
• coordinates	52°06′11″N 4°41′20″W / 52.103°N 4.689°W / 52.103; -4.689
• elevation	0 m (0 ft)
Length	122 km (76 mi)[1]
Basin size	1,008 km2 (389 sq mi)[2]
Discharge
• location	Glan Teifi[3]
• average	29.1 m3/s (1,030 cu ft/s)[3]
• maximum	373.6 m3/s (13,190 cu ft/s)
Basin features
Tributaries
• left	Tyweli, Cych
• right	Dulas, Clettwr, Ceri

The River Teifi (English: /ˈtaɪvi/; Welsh: Afon Teifi, pronounced [ˈavɔn ˈtei̯vi])^{[citation needed]} in Wales forms the boundary for most of its length between the counties of Ceredigion and Carmarthenshire, and for the final 3 miles (4.8 km) of its total length of 76 miles (122 km), the boundary between Ceredigion and Pembrokeshire. Its estuary is northwest of Cardigan, known in Welsh as Aberteifi, meaning 'mouth of the Teifi'. Teifi has formerly been anglicised as "Tivy".^[4][5]