The Yarlung Zangbo Grand Canyon in Tibet is one of the deepest and longest canyons in the world. The Yarlung Zangpo River starts at Mount Kailash before reaching the juncture of Mainling and Medog counties, where it swerves around towering Namjagbarwa, the highest peak in the eastern section of the Himalayas, carving a U-shaped gorge. The canyon is home to many animals and plants barely explored and affected by human influence, while its climate ranges from subtropical to Arctic. [Source/China.org.cn]