Sandwiched between the towering Jade Dragon and Haba Snow Mountains in the northwestern part of China's Yunnan province, Tiger Leaping Gorge is one of the world's deepest river gorges. Here about 1,500 kilometres upstream from the Three Gorges Dam, the Jinsha river (as the Yangtze is known in its upper reaches) thunders its way through the 18-km-long gorge with, as yet, untamed power.