Yi'ong geological park in SW China Photo taken on June 15, 2012 shows relics of geological disaster at Yi'ong State Geological par...

Yi'ong geological park in SW China

Photo taken on June 15, 2012 shows relics of geological disaster at Yi'ong State Geological park in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

A horse gallops at Yi'ong State Geological park in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region, June 15, 2012. (Xinhua/Purbu Zhaxi)

Photo taken on June 15, 2012 shows primeval forest at Yi'ong State Geological park in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Photo taken on June 15, 2012 shows a stick insect at Yi'ong State Geological park in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Photo taken on June 15, 2012 shows a brook at Yi'ong State Geological park in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

A bee gathers honey at Yi'ong State Geological park in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Relics of geological disaster at Yi'ong State Geological park is located in Bomi County, Nyingchi Prefecture of southwest China's Tibet Autonomous Region.