Camp Chase was a military staging and training camp established in Columbus, Ohio in May 1861 after the start of the American Civil War. It also included a large Union-operated prison camp for Confederate prisoners during the American Civil War.The camp was closed and dismantled after the war, and the site has been redeveloped for residential and commercial use, except for the Camp Chase Confederate Cemetery containing 2,260 graves of Confederates who died in captivity. Camp Chase was located in what is now the Hilltop neighborhood of Columbus, Ohio. Camp Chase is listed on the National Register of Historic Places.