Youthful river

Youthful river (old name Karamlak, Dark River) - a left tributary of Veleka a length of about 40 km. Its karst springs are about 1 km west of the village of Youth, in the eponymous landmark. Run in a wooded valley south of the Bosnian ridge and flows into the River Veleka Thracian camp, south of the village Zabernovo. In large part droughts river dries up at the bottom. Ichthyofauna it is poorer than that of Veleka. In the upper river meets trout.