A commander at this battle stayed up after holding a war council at the Widow Glenn’s cabin. A courier’s inability to find D. H. Hill delayed the main assault on this battle’s second day. Gordon Granger’s (-5[1])arrival at the end of this battle stymied an attack on Horseshoe Ridge. An order to fill a nonexistent gap led Thomas Wood to retreat from the Lafayette Road during this battle, allowing five battle lines led by James (*) Longstreet to shatter an army’s left flank. The Union commander at this battle withdrew to Chattanooga as his right flank held firm at Snodgrass (-5[1])Hill under George H. Thomas, who was nicknamed this battle’s “Rock.” For 10 points, William Rosecrans was defeated by Braxton Bragg at what September 1863 battle named for a north Georgia creek, the Civil War's (10[1])second-bloodiest battle? ■END■