Rosecrans' brigade consisted of the 8th, 10th, and 13th Indiana, 19th Ohio and Burdsell's company of cavalry, numbering in all 1917 men.
The plan proposed by Rosecrans and approved by McClellan was first suggested by a young man by the name of Hart, whose father's house stood on the pike near the summit of Rich Mountain, two miles in the rear of Pegram's position. Young Hart had been driven from home by the presence of Confederates, and was eager to do what he could for the Union cause. He sought Rosecrans, and proposed to lead him by an unfrequented route around the enemy's left, and under cover of the dense timber, by a considerable circuit, to the crest of Rich Mountain, thence to the road at his old home in the enemy's rear. He so impressed himself on Rosecrans and those around him as to secure their confidence in him and his plan. In arranging details it was ordered that Rosecrans, guided by Hart, should, at daylight of the 11th, leave the main road about one mile in front of the enemy's fortifications, keep under cover of the declivities of the mountain spurs, avoid using an axe or anything to make a noise, reach the road at the mountain summit, establish himself there as firmly as possible, and from thence attack the enemy's rear by the main road. While Rosecrans was doing this McClellan was to move the body of the army close under the enemy's guns and be in readiness to assault the front on its being known that Rosecrans was ready to attack in the rear.
The whole distance the flanking column would have to make was estimated to be five miles, but it proved to be much greater. The mountain was not only steep, but extremely rocky and rugged. Pegram, after inspection, had regarded a movement by his left flank to his rear as absolutely impossible.( 3)
His right flank, however, was not so well protected by nature, and to avoid surprise from this direction he kept pickets and scouts well out to his right. Hart regarded a movement around the enemy's right as certain of discovery, and hence not likely to be successful.
Promptly at day-dawn Rosecrans passed into the mountain fastness, whither the adventurous hunter only had rarely penetrated, accompanied by Col. F. W. Lander, a volunteer aide-de-camp of McClellan's staff —a man of much frontier experience in the West. In a rain lasting five hours the column slowly struggled through the dense timber, up the mountain, crossing and recrossing ravines by tortuous ways, and by 1 P.M. it had arrived near the mountain top, but yet some distance to the southward of where the Beverly road led through a depression, over the summit. After a brief rest, when, on nearing the road at Hart's house, it was discovered and fired on unexpectedly by the enemy.
To understand how it turned out that the enemy was found near the summit where he was not expected, it is necessary to recur to what McClellan was doing in the enemy's front. Hart had assured Rosecrans there was no hostile force on the summit of the mountain, and on encountering the Confederates there, Rosecrans for the time suspected his guide of treachery.
But first an incident occurred in the 3d Ohio Regiment worth mentioning. I. H. Marrow, its Colonel, who professed to be in confidential relations with McClellan, returned from headquarters about midnight of the 10th, and assuming to be possessed of the plans for the next day, and pregnant with the great events to follow, called out the regiment, and solemnly addressed it in substance as follows:
"Soldiers of the Third: The assault on the enemy's works will be made in the early morning. The Third will lead the column. The secessionists have ten thousand men and forty rifled cannon. They are strongly fortified. They have more man and more cannon than we have. They will cut us to pieces. Marching to attack such an enemy, so intrenched and so armed, is marching to a butcher-shop, rather than to a battle. There is bloody work ahead. Many of you, boys, will go out who will never come back again."( 4)
This speech, thus delivered to soldiers unused to battle was calculated to cause the credulous to think of friends, home—death, and it certainly had no tendency to inspire the untried volunteers with hope and confidence. The speech was, of course, the wild, silly vaporings of a weak man.
I was sent with a detachment of the 3d Ohio to picket the road in front of the enemy and in advance of the point from whence Rosecrans had left it to ascend the mountain. My small force took up a position less than one half mile from the enemy's fortified position, driving back his pickets at the dawn of day through the dense timber on each side of the road. About 9 A.M. a mounted orderly from McClellan came galloping from camp carrying a message for Rosecrans, said to be a countermand of former orders, and requiring him to halt until another and better plan of movement could be made. The messenger was, as he stoutly insisted, directed to overtake Rosecrans by pursuing a route to the enemy's right, whereas Rosecrans had gone to our right and the enemy's left. Of this the orderly was not only informed by me, but he was warned of the proximity of the Confederate pickets. He persisted, however, in the error, and presented the authority of the commanding General to pass all Union pickets. This was reluctantly respected, and the ill-fated orderly galloped on in search of a route to his left. In a moment or two the sharp crack of a rifle was heard, and almost immediately the horse of the orderly came dashing into our picket lines, wounded and riderless. The story was told. The dispatch, with its bearer, dead or alive, was in the enemy's hands. The orderly was, however, not killed, but had been seriously hurt by a rifle ball. He and his dispatch for Rosecrans gave Pegram his first knowledge of the movements of the column to the mountain summit.