Costa lies on a high slope above the Valle Imagna. The village has panoramic views of the Bergamo Alps, including Monte Resegone to the north. From the former ski resort of Forcella Alta and the Pertüs pass, elevation , the whole of the Brianza range is visible. For communication reasons the town has had closer links to the San Martino valley, Almenno San Salvatore and the plain, rather than to the rest of the Valle Imagna.