Stoneage Map

I have opened this site because I'm a person who likes to know more about the nature,especially the past and how did the Stone Age People live.We can get some insight and how was their life and their interests.I came across on the above rock.Its just the same rock.The top image is the ventral one meaning the "underside with is own colour while the other image is dorsal "upperside". I came across on this rock which is the size of two sizes of a palm hand when I visited one our waterfall Creek Falls at Sabie,Mpumalanga Province in South Africa.It looked like an African Map.I have marked with colors so that it should be easier to follow explanations and theories. 1.Ventral Side (the top one marked with Blue color on the bottom right) There are certain threads(lines) which are marked.A question is,was it modified by someone or it was just exposed by the natural forces.If we want to know more,firstly we must know ...