Outer Battery
This complex of earthen embankments and masonry structures has been the site of Fort McHenry’s heaviest artillery since about 1840. The U.S. Army kept this battery heavily armed during the Civil War to discourage any Confederate attempts to take Baltimore through naval attack or civil insurrection.
The large cannon you see today were mounted after the Civil War and are not associated with the famous 1814 bombardment. The big guns remained in service as late as 1912 but were never fired in battle.
Marker is on E Fort Avenue, on the right when traveling east.
Courtesy hmdb.org