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Definition of SIOUX FALLS
city SE South Dakota on the Big Sioux pop 123,975
geographical name(Concise Encyclopedia)
City (pop., 2000: 123,975), southeastern South Dakota, U.S. Founded in 1857, the area was abandoned in 1862 following an Indian uprising. With the establishment of Fort Dakota on the site in 1865 the settlers gradually returned. Sioux Falls is the state's largest city, and it is a commercial and financial centre in a livestock-farming region. Nearby was one of the world's first commercial nuclear power plants, decommissioned in 1967. The Earth Resource Observation Systems (EROS) Data Center is located in the city.