The south eastern part of Pohorje (which is part of the Slovenska Bistrica municipality) is very geographically diverse. The most prominent of its rolling hilltops are Rogla, Žigartov vrh and Veliki vrh. The hillsides are interspered with numerous streams. Due to the non-permeable nature of the rock, most of the rainfall stays on the surface and the rushing streams form steep gorges. Pohorje is also famous for its peat fens with numerous lakes (such as the Črno jezero Lake) and the extensive man-made glades. Clustered settlements are rare and most of the people live on isolated farms. Pohorje is the home to numerous animal and plant species and is distingushied by its forests (mostly conifer), which are the region´s main resource.