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See also:MEKONG, or ME NAM See also:KONG (pronounced Kawng) , sometimes known as the See also:Cambodia See also:River, the See also:great river of Indo-See also:China, having its origin in the Tibetan See also:highlands . It is the third or See also:fourth longest river in See also:Asia and the seventh or eighth in the See also:world . It is about 2800 m. in length, of which 1200 flow through portions of the See also:Chinese See also:Empire and See also:Tibet and 1600 through See also:French territory . Its See also:sources are not definitely settled, but it is supposed to rise on the slopes of Dza-Nag-See also:Lung-Mung in about 330 N., 930 E., at an See also:altitude of 16,700 ft. above See also:sea-level . Throughout the greater See also:part of its course in Tibet, where it is called the Dza-Chu, it flows See also:south-eastwards to Chiamdo, on the great See also:east and See also:west See also:caravan route from China to See also:Lhasa . At this point it is about io,000 ft. above sea-level . From here See also:Seneca. it flows southwards through little-known See also:mountain wastes . Below Dayul in See also:lat . 29° it is known by the Chinese name of Lantsan Kiang . For the next 300 M. of its course the Lantsan Kiang, or, as it soon becomes known among the Thai peoples inhabiting its rugged valley, the See also:Mekong, is very little known to us . The river flows beneath See also:bare and rocky walls . A few scattered villages of Lusus and Mossos exist in this region; there is no See also:trade from See also:north to south . In 25° 18' N. the Tali-See also:Bhamo caravan route, described by Colborne See also:Baker, crosses the river by one of those See also:iron suspension See also:bridges which are a feature of Yun-nan, at a height of 4700 ft. above sea-level . From this point to Chieng or Keng Hung, the See also:head of the old confederacy of the Sibsawng Punna or Twelve States, it is little known; the fact that it falls some 900 ft. for each degree of See also:latitude indicates the See also:character of the river . Under the provisions of the Anglo-French agreement of See also:January 1896, from the Chinese frontier southwards to the mouth of the Nam Hok the Mekong forms the frontier between the See also:British Shan States on the west and the territories acquired from See also:Siam by See also:France in 1893 . By the treaty of 1893, from that point southwards to about 13° 30' N. it is also the frontier between French Indo-China and Siam, and a See also:zone extended 25 kilometres inland from the right See also:bank, within which the Siamese See also:government agreed not to construct any fortified See also:port or maintain any armed force . This 25 kilo-See also:metre neutral zone was abolished in 1905 when France surrendered See also:Chantabun to the Siamese, who in their turn ceded the port of Krat and the provinces of Melupre and Bassac, together with various trading concessions to France on the right bank of the Mekong . Below the Siamese Shan See also:town of Chieng Sen the river takes its first great easterly See also:bend to Luang Prabang, being joined by some important tributaries . This portion is obstructed by rapids . The See also:country is mountainous, and the vegetation of the See also:lower heights begins to assume a tropical aspect . From Luang Prabang the river cuts its way southwards for two degrees through a lonely See also:jungle country among receding hills of See also:low See also:elevation . From Chieng See also:Khan the river again turns eastwards along the 18th parallel, forcing its way through its most serious rapid-barrier, and receiving some important tributaries from the highlands of Tung Chieng See also:Kum and Chieng Kwang, the finest country in Indo-China . In 104° E. the river resumes a southerly course through a country thinly peopled . At Kemarat (16° N.) the fourth serious rapid-barrier occurs, some 6o m. in length, and the last at Khong in 14° N . From here to its outfall in the China Sea the river winds for some 400 M. through the French territories of Cambodia and See also:Cochin China, and to its See also:annual overflow- these countries owe their extraordinary fertility . The French have done much to render the river navigable . Steamers ply regularly from See also:Saigon through Mytho to Pnompenh, and launches proceed from this See also:place, the See also:capital of Cambodia, to the Preapatano rapids, and beyond this a considerable portion of the distance to Luang Prabang, the See also:journey being finished in native boats . (J . G . |
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