Mahakam River
| Mahakam | |
|---|---|
Mahakam River at Samarinda | |
| Location | |
| Country | Indonesia |
| Province | East Kalimantan (basin extends to North Kalimantan) |
| Towns/Cities | Samarinda, Tenggarong, Sebulu, Muara Kaman, Kota Bangun, Melak, Long Iram |
| Physical characteristics | |
| Source | Cemaru |
| • location | Indonesia |
| • coordinates | 1°16′59.142″N 114°28′31.0296″E / 1.28309500°N 114.475286000°E |
| • elevation | 1,681 m (5,515 ft) |
| Mouth | Makassar Strait |
• location | Indonesia |
• coordinates | 0°35′6″S 117°16′33″E / 0.58500°S 117.27583°E |
• elevation | 0 m (0 ft) |
| Length | 980 km (610 mi) |
| Basin size | 77,095.51 km2 (29,766.74 sq mi) |
| Width | |
| • minimum | 145 m (476 ft) |
| • average | 300 m (980 ft) |
| • maximum | 1,260 m (4,130 ft) |
| Depth | |
| • average | 15 m (49 ft) |
| • maximum | 60.2 m (198 ft) |
| Discharge | |
| • location | Mahakam Delta |
| • average | (Period: 2003–2016)4,278 m3/s (151,100 cu ft/s) |
| Basin features | |
| Progression | Makassar Strait |
| River system | Mahakam River |
| Tributaries | |
| • left | Melaseh, Tepai, Nyaan, Boh, Medang, Pariq, Muyub, Pela, Belayan, Telen, Kedang Rantau |
| • right | Usok, Danum Parae, Kosso, Cihar, Ratah, Kedang Pahu, Bongan, Jembayan |
The Mahakam River (Indonesian: Sungai Mahakam) is third longest river (with the third greatest volume discharge) in Borneo after the Kapuas River and the Barito River, it is located in East Kalimantan province of Indonesia. It flows 980 kilometers (610 miles) from the district of Long Apari in the highlands of Borneo, to its mouth at the Makassar Strait.
The city of Samarinda, the provincial capital of East Kalimantan, lies about 48 kilometers (30 mi) from the river mouth. The delta of the Mahakam River has a specific micro climate which is influenced by high and low tide at sea level.