Ü (Tibetan: དབུས་, Wylie: dbus, ZYPY: Wü, Lhasa dialect: [wyː˨˧˩]) is a geographic division and a historical region in Tibet.
[1] Taken together, Ü and Tsang are considered to be the center of Tibetan civilization, from historical, cultural, political and economic perspectives.
According to The Song of the Spring Queen, the chronicle of the 5th Dalai Lama, those of Ü were Gyama, Drikung, Tsalpa, Thangpochewa, Phagmodru, and Yazang.
[4] The traditional centers of power in Tibet, such as the Yarlung Valley, Lhasa and Nêdong County, are located in Ü.
In the 15th century, the Gelug lineage gained great influence in Ü, while Tsang to the west tended to adhere to the rival Karma Kagyu school.