The Ötztal is an alpine valley located in Tyrol, Austria. The Ötztaler Ache river flows through the valley in a northern direction. The Ötztal separates the Stubai Alps in the east from the Ötztal Alps in the west. The valley is 65 km (40 mi) long. The northern end of the valley is at the confluence of the Ötztaler Ache and Inn rivers, 8 km east of Imst and 50 km west of Innsbruck.