Fairy fort / earthen ringfort in Grangerosnolvan Lower

A circular earthwork roughly 30 meters across still marks Grangerosnolvan Lower, its faint bank and double ditch surviving as a shallow scar in the ground. People called it a fairy fort, perhaps because the shape appeared suddenly or resisted ordinary explanation, yet the construction matches a human ringfort where families lived, worked and defended themselves. The fairies may have inherited the story only after the humans disappeared from it.