<Tr> <Td_colspan="2"> The lower part of the Arkansas River near Little Rock, Arkansas </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> States </Th> <Td> Colorado, Kansas, Oklahoma, Arkansas </Td> </Tr> <Tr> <Th> Region </Th> <Td> Great Plains </Td> </Tr>

Name the four states through which the arkansas river flows
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