Long time ago, in a hilly area, there was a kingdom lead by Raden Bandung. That was an infertile land, however, the people were patiently raising livestock and cultivating to fulfil their daily needs. Tranquillity and comfort suddenly turned bad since the coming of a giant (Buto) who took that beautiful land. Raden Bandung was failed to defend the kingdom so that the giants held the power. Having wounded body, he run into a forest and meditated in a lake to gain power from The Creator. In the depth of the lake, Raden Bandung was directed to sharpen his nail (sharpen: Sangir in local word, that is the origin of Sangiran) as a weapon to defeat those giants. Shortly, with his power, Raden Bandung succseffully seized his kingdom through a big war. The giant bodies were buried in Sangiran turning into bones which spreaded out in Sangiran land. Balung Buto, the giant’s bones… That’s how people call those findings.