Rich Mountain is a small residential area that is part of a larger, 200-square-mile tract of land that lies in the Ouachita Mountains and spans the Arkansas-Oklahoma state line. The name Rich Mountain applies to the mountain (which, at 2,681 feet above sea level, ranks as Arkansas second-highest peak) and the Polk County community at its northern base. While few people reside in the community in the 21st century, the influence of the name can still be seen in area institutions.