Hemu Grassland is in the mountain fault-subsidence basin in the area where Kanas River and Hemu River meet. In surrounding area of basin, mountain body is thick, the top is round, and landforms are complicated and Hemu River flows northeast to southwest through the basin, cutting the grassland into two halves. On the shadow slope there is luxuriant forest, in which red deer, marmot and snowy cock perch.