Earlier in the century, Western scholars did some pioneering work as have Chinese archaeologists more recently. In the 1920’s, the Central Asiatic Expedition of George Roerich uncovered megalithic sites and graves in the Changthang, which appeared to be typologically related to the Bronze Age and Iron Age barrows of Eurasia...
...Since the 1970’s, Chinese scientists have discovered Neolithic tools and paintings at a variety of places in the Changthang...
...Today at Black Rock there is no reliable source of potable water, however, according to paleoclimatological studies conducted by Chinese scientists in the region, a nearby lake contained freshwater as recently as 3000 years ago...
