- This category tree is for websites based in, or exclusively about, the South Wales county borough
- of Torfaen, named after the original name of the river in the valley community it represents.
- This river became better known as Afon Lwyd, flowing 13 miles from its source north of Blaenavon.
- joining the River Usk at Caerleon. now included in the unitary authority of Newport, which
- provides the southern boundary of Torfaen, before reaching the mouth of the Usk and Severn.
- The eastern and western boundaries approximately follow the ridges of mountains rising on each side
- of the Afon Lwyd, between Blaenau Gwent to the east, and Monmouthshire to the west and north.
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