The Aletsch Glacier is the biggest icy mass in the Alps. It has a length of around 23 km (14 mi) (2014), has around a volume of 15.4 km3 (3.7 cu mi) (2011), and covers around 81.7 km2 (31.5 square miles) (2011) in the eastern Bernese Alps in the Swiss canton of Valais. The Aletsch Glacier is made out of four littler icy masses focalizing at Concordia, where its thickness was measured by the ETH to be still close to 1 km (3,300 ft). It then proceeds towards the Rhône valley before bringing forth the Massa. The Aletsch Glacier is one of the numerous icy masses situated between the cantons of Bern and Valais on the Bernese Alps found east of the Gemmi Pass. The entire territory is thought to be the biggest glaciated range in western Eurasia.