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The Ogan River is a river in
South Sumatra South Sumatra ( id, Sumatra Selatan) is a province of Indonesia. It is located on the southeast of the island of Sumatra, The province spans and had a population of 8,467,432 at the 2020 Census. The capital of the province is Palembang. The prov ...
, Indonesia. It is a tributary of the Musi River in Southern Sumatra. Flowing entirely in the
South Sumatra South Sumatra ( id, Sumatra Selatan) is a province of Indonesia. It is located on the southeast of the island of Sumatra, The province spans and had a population of 8,467,432 at the 2020 Census. The capital of the province is Palembang. The prov ...
province, it rises in
Barisan Mountains The Bukit Barisan or the Barisan Mountains are a mountain range on the western side of Sumatra, Indonesia, covering nearly 1,700 km (1,050 mi) from the north to the south of the island. The Bukit Barisan range consists primarily of volca ...
(''Bukit Barisan'') and meanders slowly eastwards to join the Musi River at Kertapati, Palembang.Air Ogan
– Geonames.org. The Ogan ranks as the third longest river in South Sumatra (behind Musi and Komering). The river either borders or cuts through the regency of South OKU, OKU,
OKI Oki or Ōki may refer to: Places *Oki District, Shimane, a district in Shimane Prefecture, Japan *Oki Islands, an archipelago in the Sea of Japan *Oki Province, a former province of Japan *Ōki, Fukuoka, a town in southern Japan *Oki Airport, the ...
, and Ogan Ilir. The Ogan and Pegagan tribes lived along the Ogan and its tributaries. Most were peasant or merchant. The river served first as vital transportation artery and communications link. Formed from thick layers of this river's silt deposits, the Ogan River Valley is one of the most fertile agricultural regions of the province.


Geography

The river flows in the southern area of Sumatra with predominantly
tropical rainforest climate A tropical rainforest climate, humid tropical climate or equatorial climate is a tropical climate sub-type usually found within 10 to 15 degrees latitude of the equator. There are some other areas at higher latitudes, such as the coast of southea ...
(designated as ''Af'' in the Köppen–Geiger climate classification). The annual average temperature in the area is 24 °C. The warmest month is October, when the average temperature is around 26 °C, and the coldest is January, at 22 °C. The average annual rainfall is 2902 mm. The wettest month is November, with an average of 435 mm rainfall, and the driest is August, with 83 mm rainfall.


See also

*
List of rivers of Indonesia This is a list of rivers in Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sul ...
*
List of rivers of Sumatra List of rivers flowing in the island of Sumatra, Indonesia.''Map of Indonesia''. Peta Indonesia. Wawasan Nusantara. CV. Indo Prima Sarana. Accessed 29 Juli 2017. In alphabetical order Mouth location North coast Northeast coast Northwest ...


References

{{Rivers of Sumatra Rivers of South Sumatra Rivers of Indonesia