We marched thirty-five miles the first day until we came to a lake or swamp of about five hundred yards diameter, the headwaters of the Rosebud, which I have marked on the small map. We left Chambers' command several miles in the rear, and when we had bivouacked our camp on three sides of the lake, leaving the fourth side of the rectangle for Chambers when he arrived, the officers and many of the men walked over to observe the military movements of the "mule brigade," as it was called. [Illustration: BATTLE OF THE ROSEBUD DRAWN FROM A SKETCH BY THE AUTHOR, MADE FROM NOTES AND DESCRIPTIONS FURNISHED BY GENERAL MILLS. CYRUS TOWNSEND BRADY, AUTHOR.] Chambers was proud and ambitious to do his duty, however humiliating and disagreeable, as well as he could, so when the leading company came near the line designated, he gave the command, "Left front into line" in military style, and the first company came into line, but no sooner had the mules halted when, after their custom, they began to bray as loud as they could, making extra effort in accord with the extra effort they had made to carry their strange burden into camp. The cavalry officers began to laugh and roar. As the other companies began to halt, Chambers lost courage and with oaths and every evidence of anger, threw his sword down on the ground and left the command to take care of itself as best it could. We remained there that night. There were no buffalo, and we could not learn anything from the friendlies about the enemy. The next morning, the 17th, at sunrise we started on our march down the Rosebud, without any indication of danger. General Crook had previously to do only with the semi-nomadic tribes, and from conversations with him I felt he did not realize the prowess of the Sioux, though it was hard to think that he was not well informed by his numerous guides, scouts and especially the 250 friendly Indians. About 9.30 or 10 o'clock, General Crook being with Captain Henry's squadron marked "C" on the left bank, signalled a halt. Van Vliet's squadron "D" was in the rear of Henry, and Chambers' battalion marked "E" was in the rear of Van Vliet, and the packers were in the rear of Chambers. My squadron of four troops of the Third was in the advance on the right bank marked "A," followed by Captain Noyes with five companies of the Second marked "B." Everything was quiet, the day was beautiful, clear and very warm. All had unbridled and were grazing for perhaps half to three-quarters of an hour, when my colored servant observed he heard shouting, and knowing that his ears were better than mine, I advanced up the hill towards "D" until I got to a high piece of ground, when, looking north, I saw on the crest of the horizon about two miles distant, great numbers of moving objects, looking somewhat like distant crows silhouetted on the clear sky above the horizon. I soon came to the conclusion that they were Indians in great numbers.