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Great Appalachian Valley : ウィキペディア英語版 | Great Appalachian Valley The Great Valley, also called the Great Appalachian Valley or Great Valley Region, is one of the major landform features of eastern North America. It is a gigantic trough—a chain of valley lowlands—and the central feature of the Appalachian Mountain system. The trough stretches about from Quebec to Alabama and has been an important north-south route of travel since prehistoric times. ==Geography== Broadly defined, the Great Valley marks the eastern edge of the Ridge and Valley physiographic province. There are many regional names of the Great Valley, such as the Shenandoah Valley. From a large perspective the Great Valley can be divided into a ''northern section'' and a ''southern section''.
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「Great Appalachian Valley」の詳細全文を読む
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