Genl. Thomas' new position 20th Septr. 3 p.m.
Map shows location of Union and Confederate troops between Missionary Ridge and West Chickamauga Creek. After Confederates succeeded in breaking through the Union lines, the bulk of the Union forces retreated toward Chattanooga. Union Gen. George H. Thomas and his men held onto a tenuous position on Snodgrass Hill and repulsed assault after assault.