Throughout the American Civil War, the homes around Tunnel Hill were used as part of a major hospital system. Wounded CSA Gen. John Bell Hood was brought to the Clisby Austin House after the Battle of Chickamauga. His leg was buried in a family cemetery near the house. The Clisby Austin House also served as the headquarters for Union Gen. William T. Sherman while he made his plans for attacks against nearby Dalton and Resaca, which became the opening battles of what would later be known as the Atlanta Campaign. The area hosted many engagements and camps throughout the course of the war. These are remembered through an annual Battle Reenactment held in September.