Twice only in its course did it touch the ravine curving along near by it--once, six miles from the ferry-landing, where, on the limbs of a cluster of giant cottonwoods that grew in the bottom of the gully, a score of Indian dead were lashed, their tobacco-pipes, jerked beef and guns under the blanket wrappings that hid them; and, again, at Murphy's Throat, four miles farther up, where the coulee narrowed until a man, standing in its bed with arms outstretched, could place the tips of his fingers against either rocky wall. Beyond the Throat, the crack in the plains grew wider and shallower, veered out to the eastward, and, at last, came to an abrupt end in a high meadow below the distant river-bluffs. For decades the road had been a buffalo-trail, a foot wide and half as deep, that, in the dry season, guided the herds in single file from the caking meadow to the distant waters of the Missouri; then the travee poles of Indian tribes gave it the semblance of a wagon track, the centre of which was worn bare by the hoofs of laden ponies and the feet of trudging squaws; and, finally, the lumbering carts of traders, the Studebakers of settlers, and those heavier wagons that roll in the rear of marching men, made of the track a plain and hardened highway. Down it, that morning, approaching to the accompaniment of loud talking, the tramping of horses, the cracking of whips and the jingling of spurs, came a long procession. Yet so absorbed was Dallas in her plowing that not until the head of its column was close upon her and there was barely time to go to the bridles of the frightened mules did she see it. A tanned, unkempt officer led the way, with baying foxhounds running about him. On either hand rode his staff, and his scouts--Arickaree Indians, in patched breeches and dusty blankets. And behind, full-bearded, all military look gone from their boots, hats and uniforms, came the cavalry, riding two and two, and flying torn and faded guidons. Dallas had no chance to view the front of the command, for the mules claimed all her attention by hauling back on their bits. But now they quieted a little, and she was free to watch the dozen or so musicians who came next, mounted, with their brass instruments in hand. She saw that these men were nudging one another, and directing at her glances which were bold and amused.