"The result of this bombardment must cause, I am convinced, a change in the construction of fortification as radical as that foreshadowed in naval architecture by the conflict between the Monitor and Merrimac. No works of stone or brick can resist the impact of rifled artillery of heavy caliber"
Major General David Hunter,
Dept. of the South
Erected by National Park Service.
Plaque courtesy Lat34North.com.
Original page, with additional info, here.
Photo credit: Byron Hooks of Lat34North.com.