In its early years the monastery played an important role in both religion and politics, but it was destroyed in 1290 by Mongol troops under the direction of a rival sect.
[2] It is on the south slope of a long mountain ridge about 120 kilometres (75 mi) north-east of Lhasa, and looks over the Shorong valley.
A more plausible source says that the region was the fiefdom of Dri Seru Gungton, a minister of King Songtsän Gampo, and is named after him.
[3] In the early years after the death of Jigten Sumgön the monastery grew quickly, rivaling the Sakya sect in political and religious influence.
The monastery dispatched lamas across Tibet in the 13th century to found meditation colonies at pilgrimage sites including Mount Kailash, the Lapchi caves and the sacred Tsari Mountain.
[3] The role of the monastery was now mainly limited to being a center for contemplative studies and serving as the home of the Drigung Kargyupa subsect.
[3] The traditions of the monastery were also revived in 1989 at the Jangchubling Drikung Kagyu Institute in Dehradun, Uttar Pradesh (now Uttarakhand), India.
[6] The Tsuglakhang, the main shrine hall, stands on a rampart of solid stone about 20 metres (66 ft) high, fronted by a large terrace that in the past was the place where lessons were given.
A small building above the tsokchen (assembly hall) is dedicated to Achi, who protects the monastery, with depictions of her peaceful and wrathful manifestations.
A pilgrimage trail runs around the monastery from below the chanting hall up to the crest of the ridge and the sky burial site at 14,975 feet (4,564 m), and then skirts various chörtens and shrines before descending to the starting point.