Crescent Moon Spring Along the Silk Road.
About 6 kilometers south of Dunhuang City, Gansu, China and surrounded by the Echoing Sand Mountain, Crescent Moon Spring is an oasis in the desert. The formation of the lake resulted from a geological peculiarity and natural wonder where the topography of the sand dunes force the incoming desert winds to spiral before finally retreating in an easterly direction. Thus, the sands do not smother the spring. The natural harmony between the spring and the dunes has attracted visitors for many years, eventually becoming a World Heritage Site by UNESCO.
However since the 1970’s owing to climate change, tourism and industrialisation the lake started to shrink dramatically in size and depth. Concerned scientists and environmentalists are looking at a change in glacial melt from the distant Qilian Mountains that feeds the Dang River as likelihood for the disappearing lake.