a lake in Kurgan Oblast, RSFSR. Area, 61.3 sq km. Located in the eastern part of the Tobol-Ishim interfluve at an altitude of 113 m. Lake Medvezh’e has no outlet and is salty. It is fed by melting snow. The average water temperature in summer is approximately 20°C. It freezes over in some years (from November through March). The health resort of Medvezh’e Ozero is on the lake.