Xishuangbanna,
Sibsongbanna, or
Sipsong Panna, abbreviated to
Banna (full name:
Tai Lü: ; ; , Sipsongpanna), is a
Tai Lü autonomous prefecture in the extreme south of
Yunnan Province, China. The prefectural seat is
Jinghong, the largest settlement in the area and one that straddles the
Mekong River, called the Lancang River in Chinese.