Ngga Pulu

Information

Elevation

4.862 m

Country

Indonesia (ID)

Location / Range

Sudirman Range, Central Papua, Indonesia

Mountain type

Glacial non-volcanic peak (Carstensz massif, igneous and sedimentary rock)

Volcanic?

No (non-volcanic)

Coordinates

-4.0598, 137.1851

Difficulty

Very difficult — requires a special permit from the Indonesian government (restricted area of Papua), technical glacier climbing, and is usually combined with a Puncak Jaya (Carstensz Pyramid) expedition through an official operator

Best Season

May–October (Papua's relative dry season, more stable weather and better visibility)

Permits & Rules

Mandatory entry permit for the restricted area (Papua permit) from the relevant ministry/agency; usually arranged through an official expedition operator partnered with the local authorities

Hazards

Rapidly shrinking tropical glacier (risk of crevasses), sudden weather changes, extreme altitude (risk of AMS/HACE/HAPE), technical glacial terrain, limited access

Description

Ngga Pulu (4,862 m) is one of the most historically significant summits in the Sudirman Range of Central Papua, Indonesia — the only peak in the Carstensz massif still bearing its indigenous Papuan name. For centuries until the mid-20th century, Ngga Pulu was considered the highest point of New Guinea and of the entire Australasia landmass. Ongoing retreat of tropical glaciers has progressively reduced its effective elevation, and it is now surpassed by Puncak Jaya (Carstensz Pyramid, 4,884 m) — a peak that was itself a sub-summit of Ngga Pulu in 1936. The first recorded ascent was made on 5 December 1936 by Dutch geologist Anton Colijn, Jean Jacques Dozy, and Frits Wissel via the Northwall Firn during the Carstensz Expedition. Access today requires a restricted-area permit from the Indonesian government and is typically undertaken as part of a Puncak Jaya expedition through authorized operators.