Scarp Walls and Casemate Gallery (1872)

The earthwork walls of Fort Niagara were reinforced with concrete and brick between 1863 and 1872 due to tensions with British Canada over the American Civil War. Tempers had cooled by 1872, and guns were never mounted here. Steps descend to the South Casemate Gallery designed to contain four 24-pounder cannon whose fire would interlock with that of the North Gallery visible across the ditch. Firing slits for riflemen and a powder magazine are located at the end of the gallery