It flows east and northeast in a wide valley until the village of Pet Mogili.

It the heads north, the valley becomes canyon-like, deeply cut in the Aptian and Serravallian limestones of the Ludogorie and Dobruja.

Downstream of Tsani Ginchevo the river dries up and only receives occasional water feed.

The river has rain–snow feed with low annual discharge and irregular water flow.

There are several small reservoirs along the river and its tributaries to catch water for irrigation.