On 19 April 1862, "Tyler" moved farther south where she captured the Confederate transport "Albert Robb" and burned another Southern ship, "Dunbar". After Shiloh and the capture of Island No. 10 on the Mississippi, the North shifted the emphasis of its war in the west to conquering that mighty river in an effort to divide the Confederacy in two. Fort Pillow fell on 4 June and Memphis, Tennessee fell on 6 June. Vicksburg, Mississippi was the next obstacle, and it took more than a year to remove it. Those efforts occupied "Tyler" intermittently for the ensuing 13 months. Her first action of the Vicksburg Campaign came in mid-July when she joined the ironclad and the in probing the Yazoo River above Vicksburg in search of the incomplete Confederate ironclad ram CSS "Arkansas" which had eluded capture at Memphis and sought refuge far up the Yazoo. The falling waters of the Yazoo forced "Arkansas" downriver; but, by then, she was virtually complete and ready for battle.