The rock shelter of Crvena Stijena faces South but to the West it overlooks the Trebišnjica river valley, which was dammed in the 1970s, forming beautiful Lake Bileća. As you stand in the shelter looking across the valley, you are seeing neighboring Bosnia-Herzegovina.
The river valley was probably an important migration route for herds of nutritious prey for humans in prehistory, such as various species of deer. Additionally, it would have provided a wide range of plant foods and resources, as well as fresh water.
It is no wonder, therefore, that humans lived continuously in this warm, dry shelter protected from the cold northern winds, for tens of thousands of years.