Big Sioux

geographical name

ˈsü How to pronounce Big Sioux (audio)
river 420 miles (676 kilometers) long in South Dakota and Iowa flowing south to the Missouri River and forming the Iowa–South Dakota boundary

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Big Sioux

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Cite this Entry

“Big Sioux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Big%20Sioux. Accessed 28 Nov. 2024.

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