Stone Mountain is a quartz monzonite dome monadnock and the site of Stone Mountain Park, 16 miles (26 km) east of Atlanta, Georgia. Outside the park is the small city of Stone Mountain, Georgia. The park is the most visited tourist site in the state of Georgia.

The Stone Mountain Memorial half dollar was an American fifty-cent piece struck in 1925 at the Philadelphia Mint. Its main purpose was to raise money on behalf of the Stone Mountain Confederate Monumental Association for the Stone Mountain Memorial near Atlanta, Georgia. Designed by sculptor Gutzon Borglum, the coin features a depiction of Confederate generals Robert E. Lee and Stonewall Jackson on the obverse and the caption: "Memorial to the Valor of the Soldier of the South" on the reverse. The piece was also originally intended to be in memory of the recently deceased president, Warren G. Harding, but no mention of him appears on the coin.