Jon Gower, writer and keen walker of the Welsh mountains, explores the unique characteristics of each of Wales's five ranges and reflects on what they mean to the people who live among them.

For many people, Wales is synonymous with its mountains. They occupy a unique place in the country's ancient mythology, its history and its culture, defining who rules the country, who lives in it, and how they survive. But each of the mountain ranges of Wales has its own unique character. In this series of The Essay, Jon Gower paints a detailed portrait of the landscape of these higher places, and in doing so, explores how they’ve shaped the country's psyche.

Jon sees the Brecon Beacons as being all about water - from their formation by gargantuan glaciers, rumbling slowly across the land gouging valleys and shuffling rocks ever onward, to the many waterfalls tumbling into space. The most remarkable of these is Sgwd yr Eira, the ‘fall of snow’, a veritable avalanche of spume and rush where you can actually walk behind the curtain of water.

Producer: Megan Jones for BBC Cymru Wales