Ski Arlberg is the biggest connected ski resort in Austria, consisting of the villages of Lech, Oberlech, Zürs and Zug, which were linked to Warth and Schröcken in 2013-14. The ski area comprises 15 aerial tramways, 45 chairlifts and 28 drag lifts.The White Ring, the world's longest ski circuit (22 km), is located within the Ski Arlberg area. Since 2005-06, annual White Ring races have been held.