The Quapaw (or Arkansas and Ugahxpa) people are a tribe of Native Americans that coalesced in the Midwest and Ohio Valley. The Dhegiha Siouan-speaking tribe historically migrated from the Ohio Valley area to the west side of the Mississippi River and resettled in what is now the state of Arkansas; their name for themselves refers to this migration and traveling downriver.The Quapaw are federally recognized as the Quapaw Nation. The US federal government removed them to Indian Territory in 1834, and their tribal base has been in present-day Ottawa County in northeastern Oklahoma. The number of members enrolled in the tribe was 3,240 in 2011.