Ngga Pulu is summit on the north rim of Mount Carstensz in the western part of the island of New Guinea rising 4,862 metres (15,951 ft).
However, due to glacial melting, Ngga Pulu lost a high margin of elevation in the 20th century, being surpassed by Puncak Jaya.
When Indonesia took control of Western New Guinea in 1963, the peaks were known as Puntjak Soekarno and Puncak Jaya until the Carstensz Pyramid was established as the highest summit.
Anton Colijn, Jean Jacques Dozy and Frits Wissel reached the summit on 5 December 1936 during the Carstensz Expedition over the Northwall Firn.
Inside the Carstensz area, a former sub-peak, the now rocky summit of Sumantri, is now some meters higher than the still ice-covered Ngga Pulu.