According to the Shidian County Almanac (1997:544), ethnic Bulang (autonyms Wu 乌、Aiwu 埃乌、Ben people 本族) are found in Mulaoyuan Township 木老元乡 and Bailang Township 摆榔乡; in the villages of Hazhai 哈寨、Upper Mulaoyuan 上木老元、Lower Mulaoyuan 下木老元、Dazhong 大中、Jianshan 尖山; and in Dazhai 大寨, Doupo Village 陡坡村, Yaoguan Township 姚关镇.