| Lopan | |
|---|---|
 The Lopan in Kharkiv, Ukraine | |
| Native name | Лопань ( Russian) |
| Location | |
| Country | Russia, Ukraine |
| Physical characteristics | |
| Mouth | Udy |
• coordinates | 49°56′13″N 36°12′12″E / 49.9370°N 36.2032°E |
| Length | 93 km (58 mi) |
| Basin features | |
| Progression | Udy→ Donets→ Don→ Sea of Azov |
The Lopan (Russian and Ukrainian: Лопань) 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 (58 mi) long. The river Kharkiv is one of its tributaries.
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