Island No. 10, Mississippi River, had been fortified by General Polk, Confederate, and was commanded by General Mackall with about 8000 troops of Beauregard's army. It was bombarded for three weeks by Commodore Foote, commanding seven Federal gunboats, from March 18th until surrendered April 8, 1862. The evacuation was forced by Pope with a large land force. He, under cover of a vigorous fire from two gunboats, which had run past the island by night, brought his men across the river in transports. The defenders of the batteries fled, and were pursued into the swamps. Nearly 7000 prisoners were taken together with an immense quantity of ammunition and supplies.
Twelve mortar boats engaged in battle with land batteries. Night Scene.