Andreas Gruschke. The Cultural Monuments of Tibet's Outer Provinces; Amdo Vol. 2.
Dzamtang is a monastic city in southern Amdo. It is the common name for the three adjoining Jonang monasteries of Tsangwa, Choje and Tsechu. Of these,Tsangwa is the main monastery of the Dzamtang area and the home institution of the Jonang order. The oldest monastery of the complex is Choje, which was established in 1425 by Rinchen Pel.