Travelling from Xinjiang, it is about south of Kashgar and is the last town before the border with Pakistan. It is over the Khunjerab Pass from Sust, which is the Pakistani border town. Passenger road service between Tashkurgan and the Pakistani towns of Sust and Gilgit has existed for many years, and road service between Kashgar and Gilgit (via Tashkurgan and Sust) started in summer 2006. However, the border crossing between China and Pakistan at Khunjerab Pass (the highest border of the world) is open only between May 1 and October 15. During winter, the roads are blocked by snow.