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Lake Memphremagog ((フランス語:Lac Memphrémagog)) is a fresh water glacial lake located between Newport, Vermont, United States and Magog, Quebec, Canada.〔(【引用サイトリンク】work=Late Wisconsinan Deglaciation and Glacial Lake Development in the Appalachians of Southeastern Quebec )〕 The lake spans both Quebec and Vermont, but is mostly in Quebec. Most of the watershed that feeds the lake is located in Vermont, and is a source for accumulated phosphorus, sediments and other pollutants. Recent clean up efforts have started to improve the water quality. The lake furnishes potable (drinking) water for 200,000 people. ==Physical characteristics== The lake is long with 73 percent of the lake's surface area in Quebec, where it drains into the Magog River.〔(The Spell of Lake Memphremagog )〕 However, three-quarters of its watershed, , is in Vermont. The total is , with located in Quebec. In Vermont, the lake lies in parts of the towns of Derby and Newport, in addition to the City of Newport, all in Orleans County. In Quebec, the lake lies in parts of Austin, Magog, Ogden, Potton, Saint-Benoît-du-Lac, and Stanstead Township, all in Memphrémagog Regional County Municipality. The lake occupies most of what the Vermont Agency of Natural Resources calls "Basin 17." At the very south end of the lake, there is a South Bay, connected by the narrowest part of the lake. The lake elevation is . Both ends of the lake are fairly shallow, with depth ranges of to . The lake bottom takes a dramatic drop in Canada, starting opposite Mount Owl's Head and continuing that way north to Gibraltar Point, where it starts to climb back to the shallows of the north end. Its maximum recorded depth of is located in Canada, opposite Jewett Point (at approximately 45.111621, -72.278491). The lake is the third deepest in Vermont.〔Behind Lake Champlain at deep and Lake Willoughby at deep〕〔(Lake Memphremagog Fishing in Orleans County )〕 It contains 20 islands. Province Island, the largest, is divided by the international border.〔 〕 The lake is irregular in shape, and along its shores are several striking indentations, in some places low, and in some other parts high and rocky. Along the western shore of the lake are several mountains, prominent among which are Owl's Head, Elephantis, and the Hog's Back. 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「Lake Memphremagog」の詳細全文を読む スポンサード リンク
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