Local legends say that in ancient times the tribes living in Chong Kemin valley area used this hill to watch for any enemy tribes that might approach along the road. The hill offered a view over all of Chong Kemin. Day and night, lying on this hill, local soldiers guarded their homes. As time passed, locals began calling this hill Karool Dobo "Guard Hill". Later, the village at the foot of the hill also took the name "Karool Dobo".