"Mynydd Machen is a 362-metre-high (1,188 ft) hill lying between the town of Risca and the village of Machen in Caerphilly county borough in South Wales. Its summit is crowned by a trig point and a mast."@en . "362.0"^^ . "185.0"^^ . . "OSLandranger 171 / Explorer 152" . "Mynydd Machen"@en . .