Aidar (river)

The Aidar (Ukrainian: Айдар, Russian: Айдар) is a river in Luhansk Oblast, Ukraine and Belgorod Oblast, Russia. A left tributary of the Seversky Donets, it is 264 km (164 mi) long (with 256 km (159 mi) located within Ukraine) and has a basin area of 7,420 square kilometres (2,860 sq mi).^{[1][2][3][4][5]} The slopes of the valley are partitioned with ravines and gorges. In the spring, snow melt accounts for approximately 70% of the flow. The average flow module is 1.7 litres / sec / km².^{[citation needed]} The river freezes in December.

Aidar
Native name	Айдар (Ukrainian)
Location
Country	Russia, Ukraine
Physical characteristics
Mouth	Donets
• coordinates	48°42′27″N 39°11′48″E
Length	264 km (164 mi)
Basin size	7,420 km2 (2,860 sq mi)
Basin features
Progression	Donets→ Don→ Sea of Azov

The Aidar Battalion in the Ukrainian Armed Forces is named after this river.^[6]