Why this matters
Stonewall Hill is approximately 250–300 metres in height and is characterised by outcrops of Silurian greywacke and mudstone. It may derive its name from local stone walls or defensive earthworks, though no specific folklore is widely recorded. Its significance lies in its potential as a landscape marker within the Powys countryside.
What is recorded here
A named place photographed at this map point in Powys.