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The Allegheny Front is the major southeast- or east-facing escarpment in the Allegheny Mountains in southern Pennsylvania, western Maryland, and eastern West Virginia, United States. The Allegheny Front forms the boundary between the Ridge-and-Valley Appalachians to its east and the Appalachian Plateau (locally called the Allegheny Plateau) to its west. The Front is closely associated with the Appalachian Mountains' Eastern Continental Divide, which in this area divides the waters of the Ohio/Mississippi river system, flowing to the Gulf of Mexico, from rivers flowing into Chesapeake Bay and from there into the Atlantic Ocean. However, the Front and the Divide do not always coincide; for example, the North Branch of the Potomac River begins well west of the Allegheny Front, at the Fairfax Stone near the southwestern tip of Maryland, and only about and across the actual divide from the headwaters of the Youghiogheny River draining westwards into the Monongahela and Ohio rivers. The Allegheny Front is one of the windiest spots east of the Mississippi, leading to the recent establishment of wind farming there. ==Geography== The Allegheny Front forms part of the Appalachian Structural Front, separating the Appalachian Plateau from the Appalachians' Ridge and Valley Province. The various other escarpments along this structural feature include the Catskill Escarpment to the northeast and the Cumberland Escarpment to the southwest.〔 The Allegheny Front itself extends for about southwesterly from south-central Pennsylvania through western Maryland, then divides the eastern panhandle of West Virginia from the rest of that state. The name "Allegheny Front" is applied to the escarpment throughout much of its extent, although it is little used in Maryland. 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「Allegheny Front」の詳細全文を読む スポンサード リンク
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