The Karlspitzen is a twin-peaked mountain in the middle of the Kaisergebirge range of the Northern Limestone Alps in Austria. The two peaks are the northern Hinteren Karlspitze (2,281 m) and the southern Vorderen Karlspitze (2,263 m) with its summit cross; they are linked by a sharp, exposed, rocky arête. Seen from the south the Vordere Karlspitze is a huge and very prominent block of rock, whereas the Hintere Karlspitze is hidden behind other (lower) neighbouring mountains.