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Which river is the longest in the Chittagong Hill Tracts?
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The longest river in the Chittagong Hill Tracts is the Karnaphuli River.1
While the region's river system is composed of four main rivers—the Feni, the Karnaphuli, the Sangu, and the Matamuhari—the Karnaphuli is the longest among them. Within the Chittagong Hill Tracts area, this river is also known as the Kynsa Khyoung.12