The dame site for Mamaya Hydropower Station on the Beipanjiang River was planed to select the reach between Bulang accumulation volume on the upstream and the Xiaohuajian River on the downstream.

• 北盘江马马崖水电站拟选坝址处于上游补朗塌滑堆积体至下游小花江河段,由于该河段两岸不同规模的崩塌堆积体十分发育,故近坝库段的库岸稳定是制约坝址选择的主要工程地质问题。