Name: Carstensz Pyramid (Sudirman Mountain, Puncak Jaya, Jaya Kesuma)
Height: 4.884 m / 16.023 ft
Coordinates: 4° 05′ S, 137° 11′ E
Region : Indonesia
Nearest airport: Timika (TIM)
Start of the normal route: Sugafa Village/Ilaga Village
Normal time: about 2 weeks
First to the top: Heinrich Harrer, Austria 1962

The highlands surrounding the peak were inhabited before European contact, and the peak was known as Nemangkawi in Amungkal. Puncak Jaya was named ‘Carstensz Pyramid’, after Dutch explorer Jan Carstensz who first sighted the glaciers on the peak of the mountain on a rare clear day in 1623 (Carstensz was ridiculed in Europe when he said he had seen snow near the equator).[citation needed] This name is still used among mountaineers.[citation needed] Although the snowfield of Puncak Jaya was reached as early as 1909 by a Dutch explorer, Hendrik Albert Lorentz with six of his indigenous Dayak Kenyah porters recruited from the Apo Kayan in Borneo[3], the peak was not climbed until 1962, by an expedition led by the Austrian mountaineer Heinrich Harrer (of Seven Years in Tibet fame) with three friends — Temple, Kippax and Huizenga.

Puncak Jaya some times known as Mount Carstensz or the Carstensz Pyramid, is a mountain in the Sudirman Range, the western central highlands of Papua Province, Indonesia. Other names include Nemangkawi in the Amungkal language, Carstensz Toppen and Gunung Sukarno

When Indonesia took control of the province in the 1960s, the peak was renamed ‘Puntjak Soekarno’ (Simplified Indonesian: Puncak Sukarno) or Sukarno Peak, after the first President of Indonesia, later this was changed to Puncak Jaya. Puncak means peak or mountain and Jaya means ‘victory’, ‘victorious’ or ‘glorious’).