Zwölferkogel 🏔️ Overview Zwölferkogel is a rugged limestone mountain in Austria’s Totes Gebirge, part of the Northern Limestone Alps. Rising to a commonly cited elevation of 2,099 meters (6,886 feet), the peak stands near the northern edge of the range and forms the northernmost major summit of the distinctive group known as the Almtaler Sonnenuhr, …