In topography, prominence characterizes the height of a mountain or hill's summit by the vertical distance between it and the lowest contour line encircling it but containing no higher summit within it. It is a measure of the independence of a summit. A peak's key col is a unique point on this contour line and the parent peak is some higher mountain, selected according to various objective criteria.
There are 16 summits above 3000m in SA that has 7% prominence on height and 51 in total including Lesotho.
Ben Macdhui (also spelled Ben Macdui) is a 3,001-metre mountain in the Eastern Cape province of South Africa. It was named after Ben Macdhui in Scotland. It is the highest peak entirely within the Eastern Cape; KwaDuma is higher, but it lies on the border with Lesotho