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Which tributaries drain northern Laos into the Mekong River?
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Mekong River
The Irrawaddy and Mekong river basins and their drainage networks.
The principal tributaries that drain northern Laos into the Mekong River include the following rivers:
These rivers are located within the northern highlands, a region characterized by highly folded ranges and dissected uplands that slope generally from east to west toward the Mekong.12