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The Arkansas River Valley, also known as the Arkansas Valley, is a region in Arkansas defined by the Arkansas River in the western part of the state. Generally defined as the area between the Ozark and Ouachita Mountains, [1] the River Valley is characterized by flat lowlands covered in fertile farmland and lakes periodically interrupted by high peaks.
The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.
Over decades, they built what is the single largest earthwork enclosure complex in the Ohio River Valley. [6] The complex was one of hundreds of Native American ancient monuments identified and surveyed for the Smithsonian Institution in the mid-nineteenth century by Ephraim G. Squier and Edwin Hamilton Davis, from 1837 to 1847.
Ohio counties on the Ohio River — located within the Appalachian Ohio region. Pages in category "Ohio counties on the Ohio River" The following 14 pages are in this category, out of 14 total.
As the water rose, it reached the divides of the side valley, until it finally escaped over the divide of the ancestral Ohio River, carving the notch lower. Once flowing over the divide, the water followed the front of the ice sheet, creating the Ohio River. The three Allegheny Rivers shown above merged into one, which joined the Monongahela at ...
The Arkansas River is a major tributary of the Mississippi River. It generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's source basin lies in Colorado, specifically the Arkansas River Valley. The headwaters derive from the snowpack in the Sawatch and Mosquito ...
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Download QR code; Print/export ... Arkansas River: 47,970 1,358: Murray Dam, ... USGS Hydrologic Unit Map – State of Arkansas (1974) See also