2019 Battle of Bost Grist Mill Reenactment Rate This Event Canons will thunder at the Battle of Bost Grist Mill Reenactment on September 21-22, 2019 at the Historic Bost Grist Mill in Concord, North Carolina. Watch as hundreds of Civil War reenactors join in the annual Battle of Bost Grist Mill Reenactment [read more]