• Cannon and Cornfield at Dawn

    Antietam

    National Battlefield Maryland

Operating Hours & Seasons

Open All Year

The Visitor Center is open daily from 9:00 a.m. to 5:00 p.m.

Park Grounds are open daylight hours.

Phone (301) 432-5124

Closed Thanksgiving, Christmas, and New Years Day

Special Programs

Memorial Day Commemoration, Saturday of Memorial Day Weekend

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?

Artillery at Antietam

Over 500 cannons participated in the Battle of Antietam, firing over 50,000 rounds of ammunition. The cannonade was so severe that Confederate artillery commander Colonel S.D. Lee described the battle as "artillery hell."