Military Railroads in the Union ID: 3076 | This file appears in: Union Depot Railroads served as the primary form of transportation during the Civil War. Thousands of soldiers traveled through Union Depot in Cleveland on their way to basic training camps and battlefields. Especially the Cleveland-Columbus-Cincinnati railroad served as an important railway for soldiers on their way to Camp Dennison near Cincinnati. Image courtesy of Cleveland State University Division of Special Collections. Download Original File "Military Railroads in the Union" appears in: Union Depot