Firs are seen in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. Located at the center of the Three Parallel Rivers world natural heritage site, the Potatso National Park is composed of the Shudu Lake, Niru area and Bitahai Nature Reserve, with an area of 1,313 square kilometers. (Xinhua Photo)
Various plants are seen in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
An eagle flies over the gate of the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
A squirrel is seen in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
Drolma of the Tibetan ethnic group collects garbages in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
Tourists visit a temple of the Tibetan Buddhism in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
Tourists entertain themselves in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
Tourists visit the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
Two Buddhist nuns walk in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008. (Xinhua Photo)
Cattles are seen in the Potatso National Park in Shangri-La, southwest China's Yunnan Province, Oct. 13, 2008.(Xinhua Photo)
