叶尔羌河
Bazar Darra was of both strategic and economic importance. It was located at the junction of the route via the Shimshal Valley to Hunza or south over the Mustagh Pass to Skardu, or west to Shahidulla, and was the centre for a number of goldmines. It also joined the main winter route which led directly north along the frozen Yarkand River to Yecheng via Kokyar, and from there, the route went northwest via Kokyar to Yarkand (Yarkant County) and Kashgar, or northeast to Pishan Town and Hotan,