Lopan Indeed GIF

The Lopan is a river that rises in Belgorod Oblast of Russia and flows across the Russian-Ukrainian border into Kharkiv Oblast where it joins the Udy in Kharkiv. The river is 93 kilometres long. The river Kharkiv is one of its tributaries.
  • Country: Russia, Ukraine
  • Mouth: Udy
  • Length: 93 km (58 mi)
  • Progression: Udy→ Donets→ Don→ Sea of Azov
Data from: en.wikipedia.org