This is the only report I could find which details any information on Confederate artillery positions.

Reports of Brigadier General Walter Q. Gresham, U. S. Army, commanding Fourth Division, of operations May 27-July 20.

HDQRS. FOURTH DIVISION, SEVENTEENTH ARMY CORPS,

--, 1864.

COLONEL: I have the honor to make the following report of the operations of the Fourth Division, Seventeenth Army Corps, during the time I commanded it, viz, from the 27th of May until the 20th of July, 1864:

. . . . On the 6th we threw up works on Nickajack Creek, within 900 yards of the enemy, who had a very strong position, with three redoubts, in our immediate front, mounting fourteen guns. At 6 o'clock on the evening of the 7th the enemy opened their battery, concentrating their fourteen guns on our front, and delivering for one hour a terrific fire, though doing but little damage. Our loss was 1 killed and 3 wounded. The fire was returned with equal vigor, and we succeeded in silencing him. During the night of the 9th the enemy abandoned his position and fell back to the south side of the Chattahoochee River. . . .

W. Q. GRESHAM,
Brigadier-General.

OR Vol. 38 Pt. 3, p. 579

Gresham’s 4th Division was positioned in front of the left end of the Confederate River Line. See OR Atlas Plate 59-8