The Bloodiest One Day Battle in American History

23,000 soldiers were killed, wounded or missing after twelve hours of savage combat on September 17, 1862. The Battle of Antietam ended the Confederate Army of Northern Virginia's first invasion into the North and led to Abraham Lincoln's issuance of the preliminary Emancipation Proclamation.

NY State Monument with Cannon at Sunset

Learn About the Battle

Here you will find more information on the history of the Battle of Antietam as well as links to our Cultural and Natural Resources.

Lodge building at the National Cemetery

Plan Your Visit

Check out this section for answers to all your questions if you are planning a visit to Antietam National Battlefield.

Burnside Bridge

Burnside Bridge Restoration

Check here for updates on the restoration of the Burnside Bridge.

Cannon on the Battlefield

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Contact the Park

Mailing Address:

P.O. Box 158
Sharpsburg, MD 21782


(301) 432-5124

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