Lhotse Middle (also called Lhotse Central I and Lhotse East), is a subsidiary peak of 8,410 metres (27,590 ft) in elevation that sits in the middle of a ridge between its parent peak, the eight-thousander, Lhotse 8,516 metres (27,940 ft), and another subsidiary peak, Lhotse Shar 8,383 metres (27,503 ft). In 2013, a proposal by Nepal to the International Climbing and Mountaineering Federation (UIAA) to have Lhotse Middle (and Lhotse Shar) designated as standalone eight-thousanders was not successful due a perceived lack of topographic prominence. Right beside the peak is the smaller subsidiary peak of Lhotse Central II (8,372 metres (27,467 ft); sometimes the term West tower and East tower are used to distinguish Lhotse Central I and Lhotse Central II, respectively (which can create confusion given Lhotse Middle's alternative name as Lhotse East, i.e being east of the parent Lhotse summit).