Knowra Arkansas River Arkansas River The Arkansas River is a major Mississippi River tributary that flows through Colorado, Kansas, Oklahoma, and Arkansas. Its course links the Rocky Mountains with the central lowlands and Mississippi Delta.
Arkansas River Basin : The drainage area whose surface waters flow into the Arkansas River and its tributaries. This basin gathers the river’s headwaters, tributaries, and plains drainage into one watershed.
Arkansas Post : A historic settlement near the Arkansas River’s mouth, established by French colonists in 1686. Its changing colonial allegiances reveal the river’s early strategic value.
McClellan–Kerr Arkansas River Navigation System : A navigation system connecting the Arkansas River to the Mississippi through locks, dams, and the Arkansas River Channel. It carries commercial barge traffic along the lower river and into Oklahoma.
Colorado River : A major river of the southwestern United States that flows toward the Gulf of California. Both rise in the Rocky Mountains, but the Colorado drains west and south rather than to the Mississippi.
Fountain Creek : A tributary of the Arkansas River that drains the Colorado Front Range near Colorado Springs. It adds urban and mountain runoff near the river’s upper course.
Arkansas Territory : A United States territory established in 1819 that included lands around the lower Arkansas River. The river gave the territory its name and shaped its settlement corridor.
Arkansas River Compact : A 1949 agreement governing the division of Arkansas River water between Colorado and Kansas. It provides rules for a river whose upstream diversions affect downstream supplies.
Platte River : A major Missouri River tributary formed by the North Platte and South Platte rivers. It drains neighboring Great Plains territory but reaches the Mississippi system through the Missouri.
Canadian River : A major Arkansas River tributary flowing across New Mexico, Texas, and Oklahoma. Its large drainage area contributes water downstream in Oklahoma.
Arkansas River Navigation System : A system of locks, dams, and channels that makes part of the Arkansas River navigable. Its construction transformed a naturally variable river into a commercial waterway.
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