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Blaenau Gwent (/ˌblaɪnaɪ ˈɡwɛnt/; Welsh: [ˈbləi.nai]) is a county borough in the south-east of Wales. It borders the unitary authority areas of Monmouthshire and Torfaen to the east, Caerphilly to the west and Powys to the north. Its main towns are Abertillery, Brynmawr, Ebbw Vale and Tredegar. Its highest point is Coity Mountain at 1,896 feet (578 m).