Negara River
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| Negara River Sungai Negara, Sungai Bahan | |
|---|---|
  Mouth location in Kalimantan (Borneo) | |
| Etymology | taken from the name of Negara District (formerly the center of Negara Daha Kingdom) |
| Location | |
| Country | Indonesia |
| Physical characteristics | |
| Source | confluence of Tabalong River and Balangan River |
| • location | Tabalong, South Kalimantan, Borneo |
| Mouth | Barito River |
• location | Marabahan, Barito Kuala |
• coordinates | 2°59′12″S 114°46′03″E / 2.9867°S 114.7674°E |
| Basin size | 250,000 hectares (620,000 acres) |
| Basin features | |
| Tributaries | |
| • right | Amandit River; Batang Alai River |
The Negara River (Indonesian: Sungai Negara or Sungai Bahan) is a river of Borneo, Indonesia.[1] It flows in the southeast region of the island, within the Negara District, province of South Kalimantan.[2] It is the second longest river in the province after the Barito River, which the Negara River flows into.
This river is a tributary of the Barito River. It rises in the Meratus Mountains, Tabalong Regency. The river mouth is located on the border of Tapin Regency and Barito Kuala Regency, where the small city of Marabahan (historic name: Bandar Muara Bahan) is located.
The Negara River has become the source of life for the people of South Kalimantan, especially in the northern region, both for the source of water and for transportation. Locations of interest along the Negara River include Margasari in Tapin Regency and Negara District in Hulu Sungai Selatan Regency.
Etymology
The river's name is taken from the Negara District (formerly the center of Negara Daha Kingdom). During the Negara Daha (pre-Islamic) period, the river was called Sungai Bahan (Bahan River). The watershed of Negara is called Batang Banyu area.
Geography
The river flows in the southeast area of Borneo island with a predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification).[3] The annual average temperature in the area is 24 °C (75 °F). The warmest month is September, when the average temperature is around 26 °C (79 °F), and the coldest is November, at 23 °C (73 °F).[4] The average annual rainfall is 2,767 millimeters (108.9 inches). The wettest month is February, with an average of 366-millimeter (14.4 in) rainfall, and the driest is September, with a 75-millimeter (3.0 in) rainfall.[5]
