When Johnston’s forces withdrew from Kennesaw Mtn. on July 3, 1864, they occupied a double line of field works extending from Smyrna southwest to Nickajack Creek at Dodgen's Mill, more or less along the old Concord Road. Hood’s Corps held the left, southwest sector of the lines, which crossed the road at this point. On July 4, Federal forces moved up and invested the entire Confederate position. Dodge’s 16th A. C. crossed Nickajack at Ruff’s Mill, and late in the afternoon Fuller’s brigade of the 4th division moved up this road, with the attack falling upon Stevenson’s division and driving it from the first line of works.