Stone Mountain is a city in DeKalb County, Georgia, United States. The population was 5,802 according to the 2010 US Census. Stone Mountain is in the eastern part of DeKalb County and is a suburb of Atlanta that encompasses nearly 1.7 square miles. It lies near and touches the western base of the geological formation Stone Mountain. Locals often call the city "Stone Mountain Village" to distinguish it from the larger unincorporated area traditionally considered Stone Mountain and Stone Mountain Park.
Stone Mountain's history began long before European settlers and the Creek Indians before them. Evidence of numerous earlier Native American tribes, including mound builders, has been found in the area.
The Treaty of Indian Springs in 1821 opened a large swath of Georgia for settlement by European Americans on former Creek Indian land, including present-day Stone Mountain Village. In 1822, the area that now makes up the city was made a part of the newly formed DeKalb County.
By the 1820s, Rock Mountain, as it was then called, was "a major travel center", with an inn for travelers. A stagecoach line linking the village with Georgia's capital, Milledgeville, began in 1825.