Kolosovka

Kolosovka lies on the Osha River, a tributary of the Irtysh in the forest country north of Omsk. Two settlements, Lower and Upper Kolosovskoye, once stood along the river. Some of the peasants who settled the lower village came from the Izyuk district farther west. The river connected these communities with the larger Irtysh basin across the flat western Siberian plain.