It lies on the border with Tibet[3] (however, see below for disputes about its exact location). After Bhutan was opened for mountaineering in 1983 there were four expeditions that resulted in failed summit attempts in 1985 and 1986.[4] In 1999, a Japanese expedition successfully climbed Liankang Kangri, a 7,535 metres (24,721 ft) subsidiary peak (not an independent mountain), separated from the main peak by a 2 kilometres (1.2 mi) long ridge to the north-northwest.