Khopyor River

Khopyor is a river in European Russia, the biggest left tributary of the Don River. It is 979 kilometres long, with a watershed of 61,100 square kilometres. The mouth width is 300 metres. The Khopyor is navigable up to 323 kilometres from the mouth. The maximum discharge is 3,720 cubic metres per second; the average discharge is 150 cubic metres per second, and the minimum discharge is 45 cubic metres per second.

Fish in the river include bream, zander, common roach, rudd, European chub, ide, bleak, catfish, pike, perch, asp and burbot.