Note:  Do not rely on this information. It is very old.

Kalgan

Kalgan, a Chinese town on the Great Wall, in the province of Chihli, 110 miles N.W. of Peking. The tutung governing the Tsakhar tribe of Mongols to the N. of the wall resides here. It is one of the chief places on the trade route through Mongolia.

Click for more about Peking