The Zhangjiajie National Forest Park ,located in northern Hunan Province.It is part of a much larger (397.5 km²) Wulingyuan Scenic Area. In 1992, Wulingyuan was officially recognized as a UNESCO World Heritage,features of the park are the pillar-like formations that are seen throughout the park. They are the result of many years of erosion The weather is moist year round, and as a result, the foliage is very dense. Much of the erosion which forms these pillars are the result of expanding ice in the winter and the plants which grow on them. These formations are a distinct hallmark of Chinese landscape, and can be found in many ancient Chinese paintings.