(Arkansas)
Marks' Mills Battleground State Park is an Arkansas State Park located at the junction of Arkansas Highway 8 and Arkansas Highway 97, north of New Edinburg, Arkansas. It preserves a portion of the battlefield of the Battle of Marks' Mills fought on April 25, 1864, in the Trans-Mississippi Theater of American Civil War. The battle was part of the Camden Expedition. The park is one of nine historic sites that make up the Camden Expedition Sites, a National Historic Landmark District. The battle was most known for the slaughter of black Union soldiers that were murdered as they tried to surrender. (Ref: https://en.wikipedia.org/wiki/Marks'_Mills_Battleground_State_Park)