Due to the mountainous terrain, alpine skiing is a prominent sport in Austria and is extremely valuable in the promotion and economic growth of the country. Similar sports such as snowboarding or ski-jumping are also widely popular. Austrian athletes such as Annemarie Moser-Pröll, Franz Klammer, Hermann Maier, Toni Sailer, Benjamin Raich, Marlies Schild &amp; Marcel Hirscher are widely regarded as some of the greatest alpine skiers of all time, Armin Kogler, Andreas Felder, Ernst Vettori, Andreas Goldberger, Andreas Widhölzl, Thomas Morgenstern &amp; Gregor Schlierenzauer as some of the greatest ski jumpers of all time. Bobsleigh, luge, and skeleton are also popular events with a permanent track located in Igls, which hosted bobsleigh and luge competitions for the 1964 and 1976 Winter Olympics held in Innsbruck. The first Winter Youth Olympics in 2012 were held in Innsbruck as well.