Historical Marker
Tree Growth Rings
Historical marker location:
16721 Point Lookout Road, St. Mary's City, Maryland
( Marker can be reached from Point Lookout Road (Maryland Route 5) 0.4 miles west of Rosecroft Road, on the left when traveling west.)
The Battle of Antietam was one of the bloodiest battles of the Civil War: The Battle of Antietam, which took place on September 17, 1862, was one of the bloodiest battles of the Civil War. More than 23,000 soldiers were killed, wounded, or missing after 12 hours of fighting. The battle is considered a turning point in the war, as it gave President Lincoln the opportunity to issue the Emancipation Proclamation.