Morris Island, located off the coast of South Carolina, is historically significant due to its role during the U.S. Civil War, specifically as the site of Fort Putnam and formerly Confederate Battery Gregg. The island played a strategic part in the defense of Charleston Harbor from Union forces. Fort Putnam was constructed by the Union Army on Morris Island between 1863 and 1865, while Confederate Battery Gregg was situated to its south. Both fortifications were involved in numerous battles, including the bombardment by Union ships under Admiral John A. Dahlgren. Today, the remains of these structures serve as a testament to the historic events that unfolded on Morris Island during this period.