Prosíčka is a village in Česká Lípa District, in the Liberec Region, Czechia. Prosíčka lies at 396 m above sea level, 12.6 km from the Giant mountains. The nearest city is Mladá Boleslav, 19.8 km to the south. Among the landmarks around are Bezděz Castle (13.7 km), Kost Castle (20 km) and Ještěd Tower (16.9 km). Among the natural features are Horní Sedlo (26 km) and Velká Buková (9.9 km).