Krosno [ˈkrɔsnɔ] (German: Altkirch) is a village in the administrative district of Gmina Mosina, within Poznań County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 2 kilometres (1 mi) south-west of Mosina and 20 km (12 mi) south of the regional capital Poznań.
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