Grant's last line panorama
 

While the Confederates moved to crush the Hornets' Nest, Grant formed a defensive line along this ridge. The line of artillery marks the final position of Grant's left on April 6. That night Buell's reinforcements deployed forward of Grant's left and center while Lew Wallace's fresh division reinforced the right. At dawn on April 7 nearly 50,000 Federals launched a counterattack against the Confederates.

(Wartime) Battery of five 24-pounder siege guns setup by Grant's Chief of Staff, Col. Joseph D. Webster
 
Photo taken a few days after the battle, before they had been moved from their battle position. Compare with photo at left