When the 23d A.C. [US] crossed the Chattahoochee at Soap Creek, above the State R. R., July 8, 1864, Johnston´s River Line [CS] (Oakdale Rd.) was evacuated to the Fulton County side, July 9. There being no further need of McPherson´s Army of the Tenn. [US] on the lower Sandtown Rd., it was sent up river to Roswell. The 16th was the 1st corps to be shifted; it began its 27 mi. march from Mitchell´s, 10 A. M. June 9, & camped that night 1 mi. E. of Marietta.
Its line of march included Powder Springs Rd. from the Cheney house to the Marietta Public Square, traversing, enroute the battlefield of Kolb´s Farm.
033-60 GEORGIA HISTORICAL COMMISSION 1954
Plaque courtesy Lat34North.com.
Original page, with additional info, here.
Photo credit: Byron Hooks of Lat34North.com.