The eastern tip of the Wakhan Corridor starts the Sino-Pak border between the People's Republic of China and Pakistan spanning about . It carries on south-eastward and ends near the Karakoram Pass. This line was determined from 1961 to 1965 in a series of agreements between China and Pakistan and finally on 03-03-1963 both the governments, of Islamabad and Beijing, formally agreed. It is understood that if the dispute over Kashmir is resolved, the border would need to be discussed again.