At the village of Kamenica, the Tamnava makes almost complete circle (triangle, in this case) as it comes just a kilometer away from its own furthermost source. In this early flow, the Tamnava makes the southeastern border of the Pocerina region of western Serbia.
At the village of Kamenica, the Tamnava nearly completes a full circle (a triangle in this case) as it is close to its farthest point. In this initial flow, the Tamnava defines the southeastern boundary of the Pocerina region in western Serbia.