Operating Hours & Seasons
Open All Year
Phone (301) 432-5124
Independence Day Commemoration (First Saturday in July)
Anniversary of the Battle of Antietam (Sharpsburg), September 17
The Memorial Illumination (First Saturday in December)
Did You Know?
The Maryland State Monument is the only monument at Antietam dedicated to both sides. Marylanders fought for both the Union and the Confederacy. 20,000 people attended the dedication on May 30, 1900. President William McKinley, a veteran of the Battle of Antietam, was the keynote speaker