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Lake Allatoona (rarely called Allatoona Lake, its government name) is a U.S. Army Corps of Engineers reservoir in Georgia, located in northwestern metro Atlanta. The lake is mostly in southwestern Cherokee County, but a significant part is in southeastern Bartow County, and a small part in Cobb County near Acworth. Cartersville is the nearest large town to the dam. Red Top Mountain State Park is located on its shores, on the peninsula between the Etowah and Allatoona arms of the lake. Most of the north side of the lake remains protected from land development because of its isolated location, mostly blocked by the lake. ==Operations== Allatoona serves seven authorized purposes: # Flood Control # Hydropower generation # Water supply # Recreation # Fish and wildlife management # Water quality # Navigation There are several private marinas and public boat ramps. Allatoona also supplies much of the drinking water for the three counties it is in. The lake is supplied mostly by the Etowah River, and its major tributary the Little River (which joins the lake at Bell's Ferry), and in turn Noonday Creek. The other major arm of the lake is Allatoona Creek, extending down to Acworth, where pre-existing Lake Acworth now empties directly into Allatoona at Lake Acworth Drive (Georgia 92). Other significant streams include Kellogg Creek and Rose Creek. The Allatoona Dam holding back the lake was completed in 1949 on the Etowah, which in turn merges into the Coosa River downstream (northwest) at Rome. The basin upstream (mostly northeast) of Allatoona covers about . This is nearly as large as the basin of Lake Lanier (Atlanta's biggest water source), but since the Allatoona is smaller, it drains and fills more rapidly than Lanier during droughts and floods. The lake's summer level has averaged above mean sea level. During major droughts it has dropped as much as below this, exposing old tree stumps and former hills which are normally submerged at depth safe for navigating boats. Its maximum capacity or flood stage is + (AMSL ), though it has never been known to reach this level, and flooding of boat ramps and other lakeside facilities begins to occur well below it. *Hydroelectric power generation at Allatoona returns more than $3.5 million to the U.S. Treasury annually. *The Corps of Engineers has 662 campsites on Allatoona. 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 Allatoona」の詳細全文を読む スポンサード リンク
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