The predecessor of the Duolun Lake Scenic Area was the Xishanwan Reservoir. It is one of the largest water projects on the Xilin Gol steppe. The beautiful Duolun Lake lies within the borders of Duolun county in Xilin Gol league. It is as if it is a jade tile amongst the hills and the steppe. The hills, lake, and steppe contrast pleasingly with one another. The changes of the four seasons are distinct within the Duolun Lake Scenic Area. In the summer it is warm and rainy, and in the autumn it is pleasantly cool. The natural landscape is both rich and colorful, and it is a wonderful place to enjoy leisure holidays and to spend the summer away.