 In the north-west there are basalt lava flows of the Batoka Formation, stretching from south of Bumbusi to the Botswana border.In the north-central area, from Sinamatella going eastwards, there are granites and gneisses of the Kamativi-Dete Inlier and smaller inliers of these rocks are found within the basalts in the north-west.The north and north-west of the park are drained by the Deka and Lukosi rivers and their tributaries, and the far south of the park is drained by the Gwabadzabuya River, a tributary of the Nata River.