Rockall is about wide and long at its base and rises sheer to a height of . It is often washed over by large storm waves, particularly in winter. There is a small ledge of , known as Hall's Ledge, from the summit on the rock's western face. It is the only named geographical location on the rock.
Rockall is about wide and long at its base and rises sheer to a height of  It is often washed over by large storm waves particularly in winter There is a small ledge of  known as Hall's Ledge from the summit on the rock's western face It is the only named geographical location on the rock