From the top of this gap is a rugged way along the ridge leading down to its southern projections and limits, by which infantry only could find foothold.
That southern point is called Maryland Heights. Two brigades-Kershaw's and Barksdale's — under General Kershaw were ordered to ascend Elk Ridge, march along its summit, driving off opposition, and capture the enemy's position on the heights.
General Semmes was left near the pass, over which the troops had marched with his own and Mahone's brigades, the latter under Colonel Parham with orders to send a brigade to the top of Solomon's Gap to cover Kershaw's rear.
General Wright, of Anderson's division, was ordered with his brigade and two pieces of artillery along the crest ridge of South Mountain to its projection over Riverton.
General Cobb was ordered with his brigade along the base of Elk Ridge, to be abreast of Kershaw's column.
With the balance of his command, General McLaws moved down the Valley by the South Mountai
Read's (Ga.) battery, Richmond Howitzers (1st), McCarthy's battery; Troup (Ga.) Art. (Carlton's battery).
Anderson's division, Maj.-Gen. Richard H. Anderson:--Wilcox's Brigade, Brig.-Gen. Cadmus M. Wilcox; 8th, 9th, 10th, 11th, and 14th Ala. Mahone's Brigade, Brig.-Gen. William Mahone; 6th, 12th, 16th, 41st, and 61st Va. Featherston's Brigade, Brig.-Gen. W. S. Featherston; 12th, 16th, 19th, and 48th Miss. (5 cos.). Wright's Brigade, Brig.-Gen. A. R. Wright; 3d (Col. Edward J. Walker), 22d, Brig.-Gen. William Mahone; 6th, 12th, 16th, 41st, and 61st Va. Featherston's Brigade, Brig.-Gen. W. S. Featherston; 12th, 16th, 19th, and 48th Miss. (5 cos.). Wright's Brigade, Brig.-Gen. A. R. Wright; 3d (Col. Edward J. Walker), 22d, 48th (Capt. M. R. Hall), and 2d Ga. Battn. (Capt. C. J. Moffett). Perry's Brigade, Brig.-Gen. E. A. Perry; 2d, 5th, and 8th Fla., Capt. David Lang, Capt. Thomas R. Love. Artillery, Donaldsonville (La.) Art., Capt. V. Maurin; Huger's (Va.) battery, Capt. Frank Huger; Lewis's (Va.) battery, Capt. John W. Lewis; Norfolk (Va.) Light Art. Blues, Lieut. William T. Peet.
Pickett's division, Maj.-Gen. George E. Pickett :--Garnett's Brigade, Brig.-Gen. Richard B. Garnett; 8th, 18th, 19th, 28th, and