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Gwydir River , a major inland perennial river〔 of the Barwon catchment within the Murray-Darling basin, is located in the Northern Tablelands, North West Slopes, and Orana districts of New South Wales, Australia. The river rises at the junction of the Rocky River and Boorolong Creek, at Yarrowyck, northwest of Uralla and flows generally northwest and west, joined by over thirty-four tributaries, including the Horton and Mehi rivers, before reaching its confluence with the Barwon River, north east of Collarenebri; descending over its course.〔〔〔〔 The flow of the river is impounded by Copeton Dam, with storage used for town water supply, stock, domestic use and irrigation. The Gwydir River below Copeton Dam provides some of the wildest whitewater rafting available in Australia. Before the construction of Copeton Dam and much diversionary work, the Gwydir River flowed into the Gingham and Lower Gwydir Wetlands. The Gwydir Highway was named after the river. ==Geography== The Gwydir river rises on the southern part of the Northern Tablelands, near the town of Uralla, and flows about generally north west and then west onto the plains where it branches somewhat, eventually joining the Barwon River, mostly as its main branch the Mehi River, which branches off to the east of Moree, before passing though it. The upper Gwydir River also passes the towns of Bundarra, Bingara, Gravesend, and Pallamallawa. Further tributaries above Moree are the Carole/GilGil Creeks to the north that flow into the Barwon River when during times of high rainfall/runoff. The Gwydir River further splits into two anabranches west of Moree - the Lower Gwydir or "Big Leather Watercourse" is the southern channel, and the "Gingham Channel" is the northern branch. The Gingham Channel flows west, joining the Ballone Creek before it flows into the Big Leather Watercourse. The Big Leather Watercourse then joins the Mehi River to the south. In turn, the Mehi River joins the Barwon River near the town of Collarenebri. Over its entire distance, the Gwydir River falls around in elevation from its headwaters, at an elevation of above sea level to when it joins the Barwon River at an elevation of above sea level. The Gwydir River's total length is , in which space and thirty-four tributaries feed into it over its entire length; including the Horton River, Warialda Creek, Laura Creek and Moredun Creek.〔〔〔〔 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「Gwydir River」の詳細全文を読む スポンサード リンク
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