Highest Mountains in Indonesia

Puncak Jaya (Indonesian: [ˈpuntʃak ˈdʒaja]; literally 'Victorious Peak', Damal: Nemangkawi Ninggok) or Carstensz Pyramid (, Indonesian: Piramida Carstensz, Dutch: Carstenszpiramide) on the island of New Guinea, with an elevation of 4,884 m (16,024 ft), is the highest mountain peak of an island on Earth, and the highest peak in Indonesia and within Oceania. The mountain is located in the Sudirman Range of the highlands of Mimika Regency, Central Papua, Indonesia. Puncak Jaya is ranked 5th in the world by topographic isolation.

When regarding New Guinea as part of the Australian continent in a biogeographical sense, Puncak Jaya can be considered the highest peak in all of Oceania, with its elevation exceeding those of the highest peaks in the nearby nations of Papua New Guinea (Mount Wilhelm), New Zealand (Aoraki / Mount Cook) and Australia (Mount Kosciuszko). Puncak Jaya is therefore often listed as one of the Seven Summits.

Adapted from Wikipedia: Puncak Jaya (CC BY-SA 4.0).

Mount Kerinci (Kerinci: Gunung Kincai, Minangkabau: Gunuang Kurinci, Indonesian: Gunung Kerinci), also spelled Kerintji, is an active stratovolcano and the highest mountain in Sumatra, Indonesia. At 3,805 metres (12,484 ft) above sea level, it provides Sumatra with the fifth-highest maximum elevation of any island in the world. It is surrounded by the lush forest of Kerinci Seblat National Park, home to several endangered species including the Sumatran tiger. Mount Kerinci is ranked 32nd by topographic isolation.

Adapted from Wikipedia: Mount Kerinci (CC BY-SA 4.0).

Mount Rinjani (Indonesian: Gunung Rinjani; Sasak: ᬕᬸᬦ᭄ᬗᬸᬂ᭞ᬭᬶᬦ᭄ᬚᬦᬶ, romanized: gunong rinjani) is an active stratovolcano situated in regencial North Lombok of West Nusa Tenggara province on the Indonesian island of Lombok. It reaches an elevation of 3,726 metres (12,224 ft), making it the second-highest volcano in Indonesia and the highest point in the province of West Nusa Tenggara.

Adjacent to the volcano is a caldera measuring approximately 6-by-8.5-kilometre (3.7 by 5.3 mi), which contains the crater lake Sagara Anak (lit. 'Child of the Sea' (in Sasak)) — named for its striking blue coloration reminiscent of the ocean. The lake lies at an elevation of around 2,000 metres (6,600 ft) above sea level and is estimated to be about 200 metres (660 ft) deep. The caldera also features several hot springs.

Mount Rinjani and its crater lake hold significant spiritual importance for the indigenous Sasak people and certain folk religious communities, serving as sites for various religious ceremonies. In April 2018, the United Nations Educational, Scientific and Cultural Organization (UNESCO) recognized the Mount Rinjani Caldera as part of the Global Geoparks Network.

Adapted from Wikipedia: Mount Rinjani (CC BY-SA 4.0).

Semeru is the highest mountain on the Indonesian island of Java and an active volcano located in the province of East Java in a subduction zone, where the Indo-Australian Plate subducts under the Eurasian Plate. Semeru is 3,676 m tall at its peak, making it the third tallest volcano mountain in Indonesia after Kerinci and Rinjani.

The name "Semeru" is derived from Meru, the central world mountain in Hinduism, or Sumeru, the abode of gods. This stratovolcano is Mahameru, meaning "The Great Mountain" in Sanskrit.

Adapted from Wikipedia: Semeru (CC BY-SA 4.0).

Mount Binaiya (Indonesian: Gunung Binaiya) is the highest point on the Indonesian island of Seram (or Ceram) and the highest mountain in the province of Maluku. With an elevation of 3,027 metres (9,931 ft), it is the 88th most topographically prominent peak on Earth.

Mount Binaiya or Binaya located at Manusela National Park with endemic biodiversity like cassowary, cuscus, Seram friarbird, Moluccan king parrot, Ternate parrot (Lorius garrulus), purple-naped parrot/blackhead parrot (Lorius domicella), Ceram Cockatoo (Cacatua moluccensis), kingfisher (Todiramphus lazuli and Todiramphus sanctus), big Seram honeybird (Philemon subcorniculatus), and Ceram bat (Pteropus ocularis).

Adapted from Wikipedia: Mount Binaiya (CC BY-SA 4.0).

Mount Merapi (Indonesian: Gunung Merapi; Javanese: ꦒꦸꦤꦸꦁ​ꦩꦼꦫꦥꦶ, romanized: gunung měrapi, lit. 'Fire Mountain') is an active stratovolcano located on the border between the province of Central Java and the Special Region of Yogyakarta, Indonesia. It is the most active volcano in Indonesia and has erupted regularly since 1548. It is located approximately 28 km (17 mi) north of Yogyakarta city which has a population of 2.4 million. Thousands of people live on the flanks of the volcano, with villages as high as 1,700 m (5,577 ft) above sea level.

Smoke can often be seen rising from the mountaintop, and several eruptions have caused fatalities. A pyroclastic flow from a large explosion killed 27 people on 22 November 1994, mostly in the town of Muntilan, west of the volcano. Another large eruption occurred in 2006, shortly before the Yogyakarta earthquake. In light of the hazards that Merapi poses to populated areas, it was designated as one of the Decade Volcanoes, which are considered worthy of particular study in light of their history of large, destructive eruptions and proximity to densely populated areas.

Adapted from Wikipedia: Mount Merapi (CC BY-SA 4.0).

Mount Tambora, or Tomboro, is an active stratovolcano in West Nusa Tenggara, Indonesia. Located on Sumbawa in the Lesser Sunda Islands, volcanism is the result of subduction zones. The 1815 eruption was the largest in recorded history, erupting up to 150 cubic kilometers of volcanic material, making it a VEI-7 on the Volcanic Explosivity Index. This caused the summer of 1816 to become known as the "Year Without a Summer" due to global cooling from the eruption.

Adapted from Wikipedia: Mount Tambora (CC BY-SA 4.0).