The Afon Ysgir is a river which rises on the southern slopes of Mynydd Epynt in Powys, Wales. The tributaries known as Ysgir Fawr and Ysgir Fechan flow past the hamlets of Pont Rhyd-y-berry and Merthyr Cynog to combine at Pont-faen and continue past the village of Battle to join the River Usk at Aberyscir.
Afon Ysgir | |
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Its upper reaches are within the military training area of SENTA, the British Army's Sennybridge Training Area.[1]
Near its mouth is a motte, the historic church at Aberyscir and east of the river, the Roman fort of CICVCIVM or Brecon Gaer. Along with other tributaries of the Usk, the river is designated as a special area of conservation or 'SAC' for various species of fish including lamprey, the twaite shad and the European bullhead.[2]