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:''For the Department of Energy facility, see Savannah River Site'' The Savannah River is a major river in the southeastern United States, forming most of the border between the states of South Carolina and Georgia. Two tributaries of the Savannah, the Tugaloo River and the Chattooga River, form the northernmost part of the border. The Savannah River drainage basin extends into the southeastern side of the Appalachian Mountains just inside North Carolina, bounded by the Eastern Continental Divide. The river is around long.〔U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. (The National Map ), accessed April 26, 2011〕 It is formed by the confluence of the Tugaloo River and the Seneca River. Today this confluence is submerged beneath Lake Hartwell. The Tallulah Gorge is located on the Tallulah River, a tributary of the Tugaloo River that forms the northwest branch of the Savannah River. Two major cities are located along the Savannah River: Savannah, and Augusta, Georgia. They were nuclei of early English settlements during the Colonial period of American history. Through the building of several locks and dams, and upstream reservoirs like Lake Hartwell, also, the Savannah River was once navigable by freight barges between Augusta, Georgia (on the Fall Line) and the Atlantic Ocean; maintenance of this channel for commercial shipping ended in 1979, and the one lock below Augusta has been deactivated.〔() Pavey, Rob. New Plant Vogtle parts could require dredging; Augusta Chronicle; September 3, 2009.〕 The Savannah River is tidal at Savannah proper. Downstream from there, the river broadens into an estuary before flowing into the Atlantic Ocean. The area where the river's estuary meets the ocean is known as "Tybee Roads". The Intracoastal Waterway flows through a section of the Savannah River near the city of Savannah. ==Name== The name "Savannah" comes from a group of Shawnee who migrated to the Piedmont region in the 1680s. They destroyed the Westo and occupied the former Westo lands at the Savannah River's head of navigation on the fall line, near present-day Augusta. These Shawnee were called by several variant names such as Shawano, Savano, Savana, and Savannah.〔(Savannah River Basin ), Georgia River Network.〕 The origin and meaning of the name ''savana'' for these Shawnee is uncertain. One theory is that the name was derived from the English term "savanna", a kind of tropical grassland, which was borrowed by the English from Spanish ''sabana'' and used in the colonial southeast. The Spanish word was borrowed from the Taino word ''zabana''. Other theories interpret the name Savannah to come from Atlantic coastal tribes, who spoke Algonquian languages, as there are similar terms meaning "southerner" or perhaps "salt".〔(Names in South Carolina, Volume 22 ), Institute for Southern Studies.〕〔(Names in South Carolina, Volume 16 ), Institute for Southern Studies.〕 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「Savannah River」の詳細全文を読む スポンサード リンク
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