Ma 'ershan, Xigu District, Lanzhou City, Gansu Province, is now building the South Ring Expressway. South Ring Expressway Project is a major project in the province, covering an area of 227 mu in Ma 'ershan Village, of which Miaoziding (the top of the mountain) is about 20 mu. On May 25th, after three years of continuous construction, the construction of Ma 'ershan fitness trail and the improvement of surrounding green landscape in Xigu District were basically completed, and vegetation restoration and ecological improvement were realized.