Kosianka-Trojanówka

Kosianka-Trojanówka is a village in the administrative district of Gmina Grodzisk, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 3 km west of Grodzisk, 22 km north-west of Siemiatycze, and 67 km south-west of the regional capital Białystok.