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Three Forks is a city in Gallatin County, Montana, United States and is located within the watershed valley system of both the Missouri and Mississippi rivers drainage basins — and is historically considered the birthplace or start of the Missouri River. The population was 1,869 at the 2010 census. The city of Three Forks is named so because it lies geographically near the point, in nearby Missouri Headwaters State Park, where the Jefferson, Madison, and Gallatin Rivers converge to form the Missouri River — the longest single river in North America, as well as the major portion of the Missouri-Mississippi River System from the headwaters near Three Forks to its discharge into the Gulf of Mexico. Three Forks is part of the Bozeman, MT Micropolitan Statistical Area of approximately 90,000 people and the greater Bozeman demographic area of approximately 115,000 people. ==History== The three rivers, west to east, were named by Meriwether Lewis in late July 1805 for President Thomas Jefferson, Secretary of State James Madison, and Treasury Secretary Albert Gallatin which was in the times the genesis of a mild controversy and eventually spawned a modern day geographical controversyin both cases regarding length comparisons between the Missouri and Mississippi rivers. Today the two confluences are incorporated inside Missouri Headwaters State Park, which is also a U.S. National Historic Landmark. The Lewis and Clark expedition visited the site on 28 July 1805. Meriwether Lewis in his journal entry wrote: :''Both Capt. C. and myself corresponded in opinon with rispect' to the impropriety of calling either of these ''()'' streams the Missouri and accordingly agreed to name them after the President of the United States and the Secretaries of the Treasury and state.'' One consequence of their decision to designate, map and name the Jeffersonthe largest as a separate tributary river, is that today the Mississippi river can arguably be called longer than the Missouri river〔Jefferson River〕 because extensive re-channelization of the streambed for hydroelectric power projects has shortened the river while the Mississippi Delta has grown lengthening the rival river. Honored in Three Forks, the Indian woman Sacagawea is best known as the interpreter and guide for the Lewis and Clark Expedition. In 1800, she was captured by the Mennetaree tribe near the present site of Three Forks. She later returned to this area with Lewis and Clark and the Corps of Discovery. A statue of Sacagawea now sits in a park off Main Street. The present-day city of Three Forks was founded Sept. 17, 1908 by John Q. Adams, a Milwaukee Road land agent. The Milwaukee (Railroad) Land Co., platted the town and held a lot sale that day. Some buildings were moved to the present city from "Old Town Three Forks", a mile to the northeast. The city became a division point on the Milwaukee Road's Rocky Mountain Division and was an important hub for the railroad during the existence of the Milwaukee in Montana (1908-1980). 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「Three Forks, Gallatin County, Montana」の詳細全文を読む スポンサード リンク
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