| Khone Falls | |
|---|---|
 Khone Phapheng Falls | |
  | |
| Location | Mekong River Champasak Province Laos |
| Coordinates | 13°56′53″N 105°56′26″E / 13.94806°N 105.94056°E / 13.94806; 105.94056 |
| Type | Cascade |
| Total height | 21 m (69 ft) |
| Watercourse | Mekong River |
The Khone Falls and Pha Pheng Falls (Lao: ນ້ຳຕົກຕາດຄອນພະເພັງ; Khmer: ល្បាក់ខោន, Lbak Khaon) together form a waterfall located in Champasak Province on the Mekong River in southern Laos, near the border with Cambodia. It is the widest waterfall in the world at 10,783 metres (35,376 feet or 6.7 miles) in width from one edge of its multiple channels to the other.
The Khone Falls are the largest in southeast Asia, and are the main reason that the Mekong is not fully navigable into China. The falls are characterised by thousands of islands and countless waterways, giving the area its name Si Phan Don or 'the 4,000 islands'.
The highest falls reach to 21 metres (69 ft); the succession of rapids stretch 9.7 km (6.0 mi) of the river's length. The average discharge of the cataract is nearly 11,000 m/s (390,000 cu ft/s), with the highest flow on record at over 49,000 m/s (1,700,000 cu ft/s).
Navigable efforts
Because the Khone Falls stop the Mekong river from carrying boat traffic to and from China, French colonialists in the late 19th century made repeated attempts to navigate the falls. Their efforts failed, which led to the construction of the Don Det–Don Khon railway on Don Det and Don Khon islands.
Wildlife
Hemimyzon khonensis, a species of hillstream loach, is known from a single specimen collected in the Mekong at the Khone Falls. The falls are home to the plabuck, an endangered species of catfish said to be the largest freshwater fish in the world. The plabuck is alleged to reach lengths of 3 m (10 ft) and weights of up to 293 kilograms (646 lb).
See also
References
- "Khone, Chutes de, Laos - World Waterfall Database". www.worldwaterfalldatabase.com. Archived from the original on 2020-01-24. Retrieved 2020-01-24.
- "10 spectacular, record-setting waterfalls". MNN - Mother Nature Network. Retrieved 2020-01-24.
- Kottelat, M. (2012). "Hemimyzon khonensis". The IUCN Red List of Threatened Species. 2012. IUCN: e.T180661A1648746. doi:10.2305/IUCN.UK.2012-1.RLTS.T180661A1648746.en. Retrieved 14 January 2018.
- "National Geographic News Photo Gallery: Giant Catfish Faces Dam Risk in Asia". Archived from the original on April 10, 2008.
- "Khone Falls". Encyclopædia Britannica. Retrieved March 4, 2005.
- "Mekong". Answers.com Encyclopedia. Retrieved March 4, 2005.
- "Khone Falls". Mekong Sources. Archived from the original on December 17, 2004. Retrieved February 13, 2005.