茶马古道 (茶馬古道) chá mǎ gǔdào

chá mǎ gǔdào proper noun Old Tea-Horse road or southern Silk Road
Domain: History 历史 , Subdomain: China
Notes: Dating back to 6th century, from Tibet and Sichuan through Yunnan and Southeast Asia, reaching to Bhutan, Sikkim, India and beyond (CC-CEDICT '茶馬古道')