Papua (province) - Geography

Geography

A central east-west mountain range dominates the geography of the island of New Guinea, over 1,600 km (994 mi) in total length. The western section is around 600 km (373 mi) long and 100 km (62 mi) across. The province contains the highest mountains between the Himalayas and the Andes, rising up to 4884 m high, and ensuring a steady supply of rain from the tropical atmosphere. The tree line is around 4000 m elevation and the tallest peaks contain permanent equatorial glaciers, increasingly melting due to a changing climate. Various other smaller mountain ranges occur both north and west of the central ranges. Except in high elevations, most areas possess a hot humid climate throughout the year, with some seasonal variation associated with the northeast monsoon season.

The third major habitat feature are the vast southern and northern lowlands. Stretching for hundreds of kilometers, these include lowland rainforests, extensive wetlands, savanna grasslands, and some of the largest expanses of mangrove forest in the world. The southern lowlands are the site of Lorentz National Park, also a UNESCO World Heritage Site.

The province's largest river is the Mamberamo, sometimes called the "Amazon of Papua", which winds through the northern part of the province. The result is a large area of lakes and rivers known as the Lakes Plains region. The famous Baliem Valley, home of the Dani people is a tableland 1600 m above sea level in the midst of the central mountain range; Puncak Jaya, sometimes known by its former Dutch name Carstensz Pyramid, is a mist covered limestone mountain peak 4884 m above sea level. It is the highest peak of Oceania.