P'i-shan

Now, 2,000 years ago, we are told that from Pʻi-shan you go east to Khoten 380 li (120 miles), and from Pʻi-shan you got north-west to Yarkand exactly the same distance. Hence both ancient and contemporary Pʻi-shan must be the first considerable town north of Shahidula, in the immediate neighbourhood of Sanju.