Lopasnya

The Lopasnya (Russian: Лопа́сня) is a river in Moscow Oblast in Russia. It is a left tributary of the Oka. It is 108 km in length, with a drainage basin of 1090 km².^[1] Its average discharge is 6,76 m³/s.

Lopasnya
Lopasnya at Chekhov
Native name	Лопасня (Russian)
Location
Country	Russia
Physical characteristics
Mouth	Oka
• coordinates	54.8427°N 37.8500°E / 54.8427; 37.8500
Length	108 km (67 mi)
Basin size	1,090 km2 (420 sq mi)
Basin features
Progression	Oka→ Volga→ Caspian Sea