In continuing operations the three days following the capitulation of Fort Henry, Tyler, Conestoga and Lexington swept the Tennessee for Confederate transports, seized the unfinished steamer Eastport, and destroyed a railroad bridge spanning the river. Battle of Shiloh After repairs Lexington rejoined Tyler protecting army transports and supporting troop movements along the Tennessee River. On 1 March the gunboats engaged Confederate forces fortifying Shiloh (Pittsburg Landing) Tennessee. They landed a party of sailors and army sharpshooters to reconnoiter Confederate strength in the area. They then moved further upstream and engaged a Confederate battery at Chickasaw, Alabama, on the 12th. Later in the month they steamed upstream to Eastport, Mississippi, where they exchanged fire with Southern artillery. The capture of Fort Henry and Fort Donelson opened serious breaches in the Confederancy's outer defense line which Grant was quick to exploit. Southern troops commanded by Gen. Albert Sidney Johnston, made a major effort to stem his advance in the Battle of Shiloh and came close to overwhelming the Union troops. Major General Leonidas Polk, CSA, reported that the Confederate forces "were within from 150 to 400 yards of the enemy's position, and nothing seemed wanting to complete the most brilliant victory of the war but to press forward and make a vigorous assault on the demoralized remnant of his forces. At this juncture his gunboats dropped down the river, near the landing where his troops were collected, and opened a tremendous cannonade of shot and shell over the bank, in the direction from where our forces were approaching." This timely support from Lexington and Tyler swung the delicate balance of forces back to the Union side and saved Grant's men from disaster. After the day was over, the Lexington and Tyler spent the night bombarding the Confederate army, which had settled down in Union camps they had captured early in the morning assault. Firing into the darkness, the gunboats caused few casualties, but they did prevent many Confederate soldiers from getting any sleep. Battle of Saint Charles Lexington continued to support army operations in the Tennessee River until steaming down the Mississippi with Conestoga, , and to enter the White River, 14 June. While the Union gunboats, were capturing St. Charles, Arkansas, 17 June a direct hit exploded Mound Citys steam drum scalding many of her men. The injured crewmen were treated on Lexington as she pushed 63 miles further upriver to