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Grand River.1 River, 260 mi (418 km) long, rising in S Mich. and flowing N to Lansing, then NW to Lake Michigan at Grand Haven. It is the longest river in the state and is navigable to the city of Grand Rapids, which grew there because of the availability of waterpower. 2 River, rising in SW N.Dak. and flowing 209 mi (336 km) SE through S.Dak. to the Missouri River near Mobridge. Shadehill Dam (1951), located on the river, was built for flood control and irrigation as part of the Missouri River basin project. 3 River in Okla.: see NeoshoNeosho
, river, c.460 mi (740 km) long, rising in E central Kansas and flowing southeast into NE Okla. (where it is generally known as the Grand River) then south to join the Arkansas River near Muskogee, Okla.
..... Click the link for more information. , river; Pensacola DamPensacola Dam,
145 ft (44 m) high and 6,500 ft (1,980 m) long, on the Grand River (local name of the Neosho), NE Okla., NE of Tulsa; built 1938–41 by the state of Oklahoma.
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