Khopyor

Khopyor is a river in Russia, a left tributary of the Don River. Its length is 974 kilometers, and its drainage basin covers 61,100 square kilometers. The river originates in the Central Russian Upland, in the Tambov Oblast, and flows generally south through the Voronezh and Volgograd Oblasts before emptying into the Don River near the city of Kalach-na-Donu.

The Khopyor River is characterized by a winding course and a relatively slow flow. Its banks are often steep and wooded, particularly in its upper and middle reaches. The river is navigable for most of its length, although navigation can be affected by seasonal ice cover from late November to March. Major tributaries include the Vorona and the Serdobol River.

Historically, the Khopyor River has played a significant role in the region's transportation and economy. It has been used for timber rafting and fishing for centuries. Its waters are a source of freshwater for surrounding settlements and agriculture. The Khopyor Nature Reserve, established to protect the river's unique ecosystem and its inhabitants, is located along its banks. The reserve is known for its diverse flora and fauna, including various fish species and migratory birds. The river's landscape also includes floodplains that are important for local biodiversity.