Zhihuo Zhalang introduction: Zhihuo Zhalang is a huge rock and is the door god of Gongga Risonggong. The water of Gonggar Yingou merges into the Chitu River here. Local Tibetans regard Gonggar Yingou as a sacred river, and the piles of Manis piled with rocks beside the river are a sight to behold.