Pontsticill Reservoir, known in Welsh as Cronfa Pontsticill or historically as Taff Fechan Reservoir, is a stunning upland impoundment nestled within the Brecon Beacons National Park and Fforest Fawr Geopark in South Wales. Completed in 1927 to supply drinking water to much of the South Wales Valleys, this 102-hectare (250-acre) reservoir sits at an elevation of 330 metres (1,080 feet) above sea level, with a maximum depth of 30 metres (98 feet). The 110-foot high embankment holds back approximately 13.6 to 15,400 megalitres of water, creating a dramatic and scenic fishery surrounded by heavily afforested banks managed by Natural Resources Wales on behalf of Welsh Water. The reservoir lies partly within Powys and partly within the county borough of Merthyr Tydfil, offering anglers a truly spectacular backdrop of national park scenery combined with productive coarse fishing for a variety of species.