|Basin countries||Sarawak, Malaysia|
|Avg. A drainage basin is an extent of Land where Water from Rain or Snow melt drains downhill into a body of water such as a River, Sarawak is one of two Malaysian states on the Island of Borneo. For the biogeographical region see Malesia Malaysia (məˈleɪʒə or /məˈleɪziə/ is a country that consists of thirteen states and discharge||m³/s|
The Rajang River is a river in Sarawak, Malaysia. In Hydrology, the discharge or outflow of a River is the volume of Water transported by it in a certain amount of time Sarawak is one of two Malaysian states on the Island of Borneo. For the biogeographical region see Malesia Malaysia (məˈleɪʒə or /məˈleɪziə/ is a country that consists of thirteen states and The river is located in northwest of Borneo and it originates in the Iran Mountains. Borneo is the third largest island in the world and is located at the centre of Maritime Southeast Asia. The river flows approximately 563 km to the South China Sea, making it the longest river in Malaysia. The South China Sea is a Marginal sea south of China. It is a part of the Pacific Ocean, encompassing an area from Singapore to the The upper part of Rajang River is also known as Batang Balui by the Orang Ulu. Malaysia's largest and tallest (160m) hydro electric project, Bakun Hydro Electric Dam Project, is located on Batang Balui narrow Bakun Fall.
The biggest town on the river is Sibu, some 60 kilometers upriver from the mouth of the Rajang. Sibu is a town and the capital of Sibu District (2298 square kilometers in Sibu Division The next major settlement upriver is Kanowit built on the mouth of Kanowit River at the bank of Rajang River, approximately 174 kilometers from the coast of South China Sea and about an hour boat ride from Sibu, followed by Kapit as the last major town on the river. Kanowit is a town and the capital of a district of the same name Kapit is a town and the capital of the Kapit District in Kapit Division, Sarawak, east Malaysia on the south bank of the Rajang River.
During the Pleistocene epoch or Mesolithic period about 10,000 years ago, there was a 5 degrees Celsius drop in the global temperature. The Pleistocene ('plaɪstəsin is the epoch from 18 million to 10000 years BP covering the world's recent period The Mesolithic or Middle Stone Age was a period in the development of human technology in between the Paleolithic or Old Stone Age and the Neolithic or New Stone Age At mountaintops, rainfall as snow and accumulated as huge icy sheets (including Mount Kinabalu), thus making a break in the global hydrological cycle. Mount Kinabalu ( Gunung Kinabalu) is a prominent Mountain in Southeast Asia. Due to lack of water discharge into the sea, there was a 120-meter drop of sea levels from the present time. The South China Sea dried up, exposing the Sunda Shelf and previous deep trenches became huge ancient rivers called the North Sunda River. Geologically, the Sunda Shelf is an extension of the Continental shelf of Southeast Asia, covered during Interglacials by the South China
Asian Mainland, Malay Peninsular, Sumatra and Java became connected to Borneo via the landbridge of exposed Sunda Shelf. Sumatra (also spelled Sumatera) is the sixth largest island in the world (approximately 470000 km² and is the largest island entirely in Indonesia (two Borneo is the third largest island in the world and is located at the centre of Maritime Southeast Asia. The North Sunda River provided vital connection to Mekong River in Vietnam and Chao Phraya River in Thailand to the north, Baram and Rajang rivers in Sarawak to the east and Pahang River and Rompin River to the west of the massive land mass. The Mekong is one of the world’s major Rivers It is the 11th-longest river in the world and 7th longest in Asia The Chao Phraya (แม่น้ำเจ้าพระยา is a major River in Thailand, with its low alluvial river plain marking the mainland of the country The Baram river is a river in Sarawak, East Malaysia on the island of Borneo. Sarawak is one of two Malaysian states on the Island of Borneo. Pahang River or ( Sungai Pahang in Malay is a river in the state of Pahang, Malaysia on the Malay Peninsula. Rompin River is a river in the Malaysian state of Pahang. It flows through the southeastern part of Pahang before emptying into the South China Sea. Freshwater catfishes from those rivers migrated and mated to exchange their genetic materials about 10,000 years ago. Thus, after the Holocene, when the temperature increased, the landbridges and Sunda River were inudated and the catfish populations were isolated. The Holocene is a Geological epoch which began approximately 10000 years ago (about 8000 BC However, their genetic motives are still in the DNA as an evidence of the previous connections of Rajang River to other isolated rivers in Indochina and Borneo. Deoxyribonucleic acid ( DNA) is a Nucleic acid that contains the genetic instructions used in the development and functioning of all known