Union Regiments and Batteries
The largest number of monuments at Antietam are to Union units from ten Northern states. A few states have a moument or marker to every regiment they sent to the field. Others, such as New York, have a large state monument, with some individual regiments honored. Several states have no memorials to their troops at all.
Only a handful of monuments honor units of the Confederacy at Antietam, or as it is known in the South, Sharpsburg.
Several types of monuments honor individuals on the battlefield. Six generals who died or were mortally wounded - three Confederate and three Union - are honored by "mortuary cannon" that mark the spots where they fell. The single equestrian statue on the battlefield honors Confederate General Robert E. Lee.
War Department Markers
In the 1890's the War Department created a series of over 200 interpretive markers to tell the story of the battle. These usually describe the actions of specific units and are divided into Union markers (numbered 1- 124) and Confederate markers (numbered 300 - 388). Other markers point out terrain features, some of which are unchanged from 1862.