There are a few theories in circulation to explain these piles of stones but none of the explanations put forward yet seem entirely credible. With the area slated to be developed into a wildlife reserve, part of a national park, it is hoped research will be completed on the stones before development proceeds.
There are several concentrations of the piles, some relatively small, some covering a vast area. The piles, often a few dozen stones piled into a small circular pile, number in the hundreds, if not more. Some of the stones are piled into regular shapes like rectangles while, in other cases, the shapes are curved. In one area, there are, for example, rectangles arranged in parallel lines.