Antietam National Battlefield

5831 Dunker Church Road
Sharpsburg, Maryland 21782
Website: https://www.nps.gov/anti/planyourvisit/index.htm

The Battle of Antietam was the bloodiest single-day battle in American history. Antietam witnessed twelve hours of combat on September 17, 1862, in which 23,000 soldiers were killed, wounded, or left missing.