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The Mahaweli River ((シンハラ語:''මහවැලි ගඟ''), literally "Great Sandy River"; (タミル語:மகாவலி ஆறு) (gangai'' )), is a long river, ranking as the longest river in Sri Lanka. Its drainage basin is the largest in the country, and covers almost one-fifth of the total area of the island. The river reaches the Bay of Bengal on the southwestern side of Trincomalee Bay. The bay includes the first of a number submarine canyons, making Trincomalee one of the finest deep-sea harbors in the world. The river and its tributaries are dammed at several locations to allow irrigation in the dry zone, with almost of land irrigated. Production of hydroelectricity from six dams of the Mahaweli system supplies more than 40% of Sri Lanka's electricity needs. One of the many sources of the river is the Kotmale Oya.〔(Mahaweli Ganga )〕 There is a misconception in Sri Lanka that the Mahaweli starts in the Sri Pada mountain. The Mahaweli gets its source waters from Hortain Plains in Kirigalpoththa and the Thotupola mountain range. == Tributaries == * Kotmale Oya * Hatton Oya * Hulu Ganga * Loggal Oya * Uma Oya * Badulu Oya * Amban ganga 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mahaweli River」の詳細全文を読む スポンサード リンク
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