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The standard, official two letter state abbreviation for Arkansas is AR.
The highest point in Arkansas is Signal Hill, which is 839 meters (2753 feet) high. It is one of two peaks on Mount Magazine, a flat-topped plateau located in the Ozark National Forest. Arkansasâ lowest point, at 17 meters (55 feet) above sea level, is the portion of the Ouachita River that enters Louisiana.