EntityQ630567· pop 30· linked from 24 articlesNaraSign in to saveriver in Moscow and Kaluga Oblasts, RussiaConnectionsRussiaCountryRussianEntityriverEntityCaspian SeaEntityLithuanianEntityVolgaEntitygeographic coordinate systemEntityMoscow OblastEntityKaluga OblastEntitydrainage basinEntityBalticEntitytributaryEntityOkaEntityriver mouthEntitySerpukhovEntitycrochetingEntityNaro-FominskEntityBaltsEntitycognateEntityEastern GalindiansEntityCategoriesRivers of Kaluga OblastRivers of Moscow OblastTributaries of the Oka