Black Mountain, Mountain range in Carmarthenshire and Powys, Wales.
Black Mountain forms the westernmost range of Brecon Beacons National Park, with its highest peak at Fan Brycheiniog at 802 m (2,632 ft). The landscape features steep ridges, cliff faces, and several mountain lakes scattered throughout the terrain.
Archaeological digs revealed Bronze Age settlements and stone structures such as the Cerrig Duon stone circle across the range. These findings show a long history of habitation and ritual use by different peoples over many centuries.
The lakes Llyn y Fan Fach and Llyn y Fan Fawr are deeply rooted in Welsh legends, especially stories about medieval mountain communities. Visitors can see how these waters remain central to local identity and continue to inspire traditional tales.
Multiple parking areas near Llanddeusant provide starting points for hiking trails across varied terrain and elevation levels. Visitors should prepare for changeable weather and wear sturdy footwear, as paths can become slippery, especially after rain.
The geology comprises Devonian Old Red Sandstone with bands of Carboniferous Limestone, creating distinctive cliff formations. This geological mix also produces the glacial lakes that dot the landscape and shape its overall appearance.
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