Renowned as the most beautiful Danxia in China, the 400-square-kilometer Zhangye Danxia Landform is found mainly in Linze and Sunan counties in Zhangye City, Gansu Province, 40 kilometers away from the city proper. Danxia is a unique geological landscape featuring an array of colorful mountains, curvaceous cliffs and strange rocks formed from reddish sandstone eroded by wind and water over a very long period of time. As one of the most exemplary and exceptionally well-developed Danxia landforms in China, it provides a panoramic view of the amazingly colorful variations and magnificent rocks and hills rolling like waves into the distance. [China.org.cn]