In peak bagging terminology in the United States, the Southern Sixers refers to the group of mountains in the southern states of North Carolina and Tennessee with elevations above sea level of at least six thousand feet (1829 m). The southern sixers are the tallest group of mountains in the eastern United States and the only peaks in the Appalachian Mountains besides New Hampshire's Mount Washington to exceed 6,000 feet. Those who complete a list of 40 of these peaks are awarded membership in the South Beyond 6000 club.