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Big Stone Lake |
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Big Stone Lake, narrow lake, c.25 mi (40 km) long, on the Minn.–S.Dak. line. Located in the outlet channel of glacial Lake Agassiz Agassiz, Lake, glacial lake of the Pleistocene epoch , c.700 mi (1,130 km) long, 250 mi (400 km) wide, formed by the melting of the continental ice sheet some 10,000 years ago; covered much of present-day NW Minnesota, NE North Dakota, S Manitoba, and SW Ontario. ..... Click the link for more information. , it is the source of the Minnesota River and serves as a storage reservoir for the Minnesota Valley. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Carbon dating of sediments recently dug from the bottoms of Big Stone Lake and Traverse Lake in Minnesota suggest that Lake Agassiz' northwestern outlet was active for no more than 400 years. |
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