Liangshan Yi Autonomous Prefecture
Adu 阿都话, characterized by its labial–velar consonants, is spoken in Butuo County 布拖县 and Ningnan County 宁南县 of Liangshan Yi Autonomous Prefecture, Sichuan province, and also in parts of Puge County 普格, Zhaojue County 昭觉, Dechang County 德昌, and Jinyang County 金阳 (Pan 2001).