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.
In the early 20th century, proposals were made to carve a large sculpture in memory of General Lee on Stone Mountain, a huge rock outcropping. The owners of Stone Mountain agreed to transfer title on condition the work was completed within 12 years. Borglum, who was, like others involved, a Ku Klux Klan member, was engaged to design the memorial, and proposed expanding it to include a colossal monument depicting Confederate warriors, with Lee, Jackson, and Confederate President Jefferson Davis leading them.
The obverse design features equestrian figures of generals Robert E. Lee and Thomas J. (Stonewall) Jackson reviewing the Confederate armies.
The reverse features an eagle, emblematic of liberty, poised on a mountain crag with stars dimly visible in the background.