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Seneca Creek is a 〔U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. (The National Map ), accessed August 15, 2011〕 stream in Montgomery County, Maryland, USA, roughly northwest of Washington, D.C. It drains into the Potomac River. ==Course== The creek begins with two main tributaries: *Great Seneca Creek, long,〔 begins in Damascus and flows south past Montgomery Village, Germantown, Gaithersburg and Seneca Creek State Park. *Little Seneca Creek, long,〔 rises in the Clarksburg area, flows south through Little Seneca Lake and Black Hill Regional Park, and the community of Boyds. These tributaries converge near Darnestown. Another major tributary, Dry Seneca Creek, empties into Seneca Creek west of Darnestown. The creek continues south and passes under Seneca Aqueduct/Riley's Lock (Lock 24) of the Chesapeake and Ohio (C&O) Canal before it flows into the Potomac River. There is about a change in elevation from the stream's upper sources to its mouth at the Potomac. Seneca Creek has a watershed area of . 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「Seneca Creek (Potomac River)」の詳細全文を読む スポンサード リンク
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