EntityQ3436849· pop 12· linked from 6 articlesVoryaSign in to saveriver in Kaluga, Smolensk, and Moscow Oblasts, RussiaConnectionsRussiaCountryRussianEntityCaspian SeaEntityVolgaEntitygeographic coordinate systemEntityMoscow OblastEntitySmolensk OblastEntitydrainage basinEntityOkaEntityriver mouthEntityUgraEntityState Water RegisterEntityCategoriesGeography articles needing translation from Russian WikipediaRivers of Moscow OblastRivers of Smolensk OblastTributaries of the Oka