The large Buddhist monastic complex and elite residence of Tsarang was founded well after the second diffusion of Buddhism (bstan pa phyi dar). On the summit of the flat-topped hill there are the ruins of a Gugé palace as well as a network of tunnels and chambers inside the formation. These were used for the storage of provisions, not as a winter palace, as is sometimes claimed.
http://DOMAIN/bellezza/#book=/bellezza/wb/b1-1-15/
image