Guiyang City is located in the middle of Guizhou hill-plateau, on the watershed between Yangtse River and Pearl River, higher in the southwest and lower in the northeast. Miaoling Mountain extends in the boundaries, hills undulate and the hills of denudation alternate with basins, valleys and depressions. The relative difference in elevation is about 100-200 m. The highest peak, 1659 m above sea level, is in Miaowoding, Shuitian Town and the lowest place, 880 m above sea level, is in the exit mouth of Nanming River. In the middle of Guiyang, the stratified landform is obvious, mainly including Guiyang ,Zhongcaosi synclinal basin and Baiyun, Huaxi, Qingyan multistage tableland as well as corroded depression. Peak cluster and dish-structure depression, funnel, underground stream, karst cave are developed.