Pumlumon (pronounced “Pimlimon”, meaning ‘five peaks’ and often anglicised to “Plynlimon”) dominates the wild, empty uplands of mid-Wales. Its windswept summit, Pen Pumlumon Fawr (752m/2467ft) is the highest point in the Cambrian Mountains, while its flanks give rise to three major rivers; the Rheidol, the Wye and the Severn (the UK’s longest river at 220 … More Pumlumon – from summit to source