Khunjerab Pass

The Khunjerab Pass is the highest paved border crossing in the world and the highest point on the Karakoram Highway. The roadway across the pass was completed in 1982, and has superseded the unpaved Mintaka Pass and Kilik Pass as the primary passage across the Karakorum Range.

On the Pakistan side, the pass is 125 km from Sust, 270km from Gilgit and 870km from Islamabad. There is a security outpost in Dih, and a customs and immigration post near Sust. On the Chinese side, the pass is 130km from Tashkurgan, 420km from Kashgar and 1890km from Urumqi. The Chinese port of entry is located on 1km from the mountain in Tashkurgan County.

Source: en.wikipedia.org/wiki/Khunjerab_Pass

The long flat pass is often snow-covered during the winter season and is closed from November 30 to May 1. There is excellent grazing on the Chinese side of the pass, and domesticated yaks and dzu (a cross between yaks and cows) may be seen from the road. On the Pakistani side, the highway travels about 50 km across the extensive Khunjerab National Park before reaching the security outpost of Dih.

Since June 1, 2006, there has been a daily bus service across the boundary from Gilgit, Pakistan to Kashghar,

Source: en.wikipedia.org/wiki/Khunjerab_Pass