From Spiegel Online (link):
Bruno Baumann carefully guides his canoe through the raging waters of the Sutlej River. Suddenly he can hardly believe his eyes: a huge labyrinth of caves appears behind a gate- like formation in the middle of the rock face of the cliffs. Along a stretch of the river extending for several kilometers, a lost city of crumbled monasteries, temples and walls, glinting in reds and silvers in the afternoon sun, rises up to 400 meters (1,312 feet) above the river valley.
Baumann, an Austrian living in Munich, is considered one of the foremost experts on Tibet in the German-speaking world. He has written about a dozen books and produced several films on the icy region in southwestern China. After Beijing reopened Tibet to foreigners in the mid- 1980s, Baumann, an ethnologist by profession, began spending months at a time on the rooftop of the world.
But what he now sees in the valley near Kyunglung outshines everything he has seen so far. “This is what it must look like, the paradise of Shangri-la, that dream world where time stood still,” Baumann says. Could it be that he has found the holy grail of Tibetans?