|Terraces at Rietvlei, south of Machadodorp|
|Cross-shaped phytoliths were found in the terrace accumulation. Maize produces cross-shaped phytoliths, but they could also emanate from wild grasses, so until statistical tests have been done they can only be seen as a possible indication of maize cultivation.|
|Tim Magg's drawing of the incremental development of terracing at Verlorenkloof|
In short we argue on the basis of this evidence that the building of terraces in Bokoni must have been incremental. As more land was taken into cultivation, stone clearing increased. The stones were used in constructing erosion controlling stone lines that eventually developed into fully fledged terrace walls.