The beautiful Changshantou Tianhu Lake is located in the dry area of the middle part of Ningxia Hui Autonomous Region.It is surrounded by hills with uniquely beautiful landscapes.It enjoys convenient transportation,with Zhongbao railway line,109 State Road,and Beijing-Tibet Highway crossing.The area of the lake is 45000 mu,of which the water comes to 2000 mu,and the red willow covers 25000 mu.There are 83 kinds of plants ,72 kinds of birds and 12 kinds of fish,forming the whole system.