10-inch coast artillery gun #
Fort Mills had 23 batteries with 56 coast artillery guns and mortars, of which six batteries were equipped with disappearing mounts. In addition, there were 13 anti-aircraft batteries with 76 guns.
Fort Mills had 23 batteries with 56 coast artillery guns and mortars, of which six batteries were equipped with disappearing mounts. In addition, there were 13 anti-aircraft batteries with 76 guns.