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Lamandau River ((インドネシア語:Sungai Lamandau)) is a river of Kalimantan, southern-central Borneo, Indonesia.〔Rand McNally, ''The New International Atlas'', 1993.〕 Downstream after passing the village of Nanga Bulik it becomes the Kotawaringin River. The ancient town of Kotawarinjin is located in the valley formed by the river and its tributary along with gold and gemstone mining areas. In the upper reaches of the tributary valley of Arut River the Panhakalnbun town flourishes on its banks. ==Geography== Lamandau River flows through southern Central Kalimantan and Pangkalan Bun, discharging into the Java Sea near Kumai at . It is a major tributary of Kotawarinjin River, known by this name after its confluence below Naga Bulik village. Tributaries include the Arut River, where in its upper reaches the Panhakalnbun town is located. While the lower reaches of the river are densely populated, the upper reaches have contiguous forest areas where Orangutans can be seen.〔 Kotawarinjin town to the west of the Lamandau River was an ancient capital of a Sultanate. The catchment of the Lamandau River comprises the western district of KalTeng and Kotawaringin Barat (West-Kotawaringin). Kotawaringin district has a population of 200,000 people constituted by Tuman Dayaks (about 33%) who are Christians. The capital of this district is Panhakalnbun, which has a sub district, a traditional area of the Dolang, close to the Kundangan city where 7000 Dayaks reside in about 100 longhouses spread over 19 villages. Panhakalnbun town is a waterfront town, which has a plywood manufacturing plant. Its fame is due to the mines nearby where gold and amethyst stones are extracted. In support of these mining activities, several shops selling diesel sets for use in mining have been set up. Another spin-off from the mines is the establishment of a number of gem stores in the town. The particularly popular item of sale is the five set lucky stones of dark coloured amethysts, duly polished and made to shimmer for sale. 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「Lamandau River」の詳細全文を読む スポンサード リンク
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