It was the whole or part of the present Cabulistan.
The name of Cophene is connected with the river Kophes, supposed to be the same as the present Cabul river, which falls into the Indus, from the west, at Attock, after passing Peshawar.

The city of Cabul, the capital of Afghanistan, may be the Kophene of the text; but we do not know that Sang-shao and his guide got so far west.

The text only says that they set out from Khoten "towards it." (3) Tsze-hoh has not been identified.

Beal thinks it was Yarkand, which, however, was north-west from Khoten.

Watters ("China Review," p.