Zhangye Danxia National Geological Park is in the eastern foothills of the Qilian Mountains in Gansu Province, China. The geological park has a spectacular Danxia ('red cloud') landform area that covers about 50 square kilometers (19 square miles). The Danxia landforms are a masterpiece of nature.

In 2005, Zhangye Danxia was voted by a panel of reporters from 34 major media outlets as one of the most beautiful Danxia landform areas in China. In 2009, Chinese National Geography magazine chose Zhangye Danxia as one of the "six most beautiful landforms" in China. The area has become a top tourist attraction for Zhangye. A series of boardwalks and access roads have been built to help visitors to explore the rock formations.