If you drive through Mpumalanga with an eye on the landscape flashing by, you may see, near the sides of the road and further away on the hills above and in the valleys below, fragments of building in stone as well as sections of stone-walling breaking the grass cover. Endless stone circles, set in bewildering mazes and linked by long stone passages, cover the landscape stretching from Ohrigstad to Carolina, connecting over 10 000 square kilometres of the escarpment into a complex web of s...