We observed that the river valley had gradually narrowed and that the bluffs were nearer to the stream than they were further east. As we were surveying the beautiful scenery, we were suddenly startled by the music of a brass band coming from behind a spur of the bluffs in the west. The booming of cannon could not have been a greater surprise to us. Changing our position to another spur in the hills, we discovered a regiment of cavalry, which we learned later was the 11th Ohio. It was preceded by a long mule train transporting baggage and some invalids. This was followed by the mounted officers, who immediately preceded the band wagon. The cavalry moved along further behind with little regard for order. In the rear were about fifty Indians mounted on horses, riding rapidly back and forth, as if to give an exhibition of their superior horsemanship. Possibly, like children they were attracted by curiosity; more probably, however, as we concluded later, they were following to create the impression that all was serene with the Indians; and they were undoubtedly pleased to see the troops moving eastward from their country, and desired to report their progress to their chiefs, whose lodges were not far away in the northwest. We learned that the cavalry was on its way home, to be discharged. The band was playing for the special entertainment of Jack Morrow, and continued from time to time until it reached his ranch. Jack would be sure to open something attractive for the entertainment of the whole party. Before the troops or the Indians left Jack's ranch we were again on the trail, rolling westward. CHAPTER IX MEN OF THE WESTERN TWILIGHT Jack Morrow's ranch was left far behind us before the sun appeared above the hills, for we had made an early start, as had been our recent practice, so that we might rest during the heat of the early afternoon. On the following morning we were on O'Fallon's bluff, so named in memory of Benjamin O'Fallon, of St. Louis, who was killed there by Indians. Topographical surveys give the elevation of the valley below the bluffs as 3,012 feet above sea level, or about 2,000 feet above Omaha. These surveys also show the bed of the Platte River to average about 300 feet higher than the Republican River at the South, and parallel streams at the North, at the various points in the same longitude West. O'Fallon's bluff, however, is not a commanding eminence, but seems to be nothing more than a good-sized, irregularly shaped sand dune.