Poostosh () is a rural locality (a village) in Cheryomushskoye Rural Settlement of Kotlassky District, Arkhangelsk Oblast, Russia. The population was 2 as of 2010.

Geography Pustosh is located 25 km south of Kotlas (the district's administrative centre) by road. Medvedki is the nearest rural locality.Расстояние от Пустоши до Котласа

References