Mekhong

Chambers's Encyclopaedia, Volume 7: Maltebrun to Pearson, p. 123

Mekhong, or MEKONG (also called Cambodia), the greatest river of the Siam peninsula, since 1894 mainly controlled by the French (see SIAM), is usually identified with the Lan-tsan, which rises in the neighbourhood of Chiando in Tibet—its exact sources are not known. It pursues a generally southerly direction to the China Sea, which it enters by several mouths in Cochin-China. This country indeed is formed by its deltaic deposits. The river has a total length of 2800 miles; but is not navigated higher than 14° N. lat. owing to rapids and cliffs which beset its bed in the mountainous regions.

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