Makalu is the fifth highest mountain in the world at 8,485 metres. Makalu has two notable subsidiary peaks. Kangchungtse, or Makalu II (7,678 m) lies about 3 km, north-northwest of the main summit. Rising about 5 km north-northeast of the main summit across a broad plateau, and connected to Kangchungtse by a narrow, 7,200 m is Chomo Lonzo (7,804 m).
Makalu-Barun Valley is a Himalayan glacier valley situated at the base of Makalu in the Sankhuwasabha district of Nepal. This valley lies entirely inside the Makalu Barun National Park.Barun Valley provides stunning contrasts, where high waterfalls cascade into deep gorges, craggy rocks rise from lush green forests, and colorful flowers bloom beneath white snow peaks. This unique landscape shelters some of the last pristine mountain ecosystems on Earth.