Down along the building railway in the valley or the Platte there had been two years of frequent encounter with small bands of Indians. Down along the Smoky Hill, in Kansas, the Cheyennes were ever giving trouble. Even around Laramie and Frayne, on the North Platte, settlers and soldiers had been murdered, as well as one or two officers, caught alone out hunting, and the Indians were, of course, the perpetrators. Nevertheless, it had been the policy of the leaders of the Northern Sioux to avoid any meeting in force and to deny the complicity of their people in the crimes committed. Supply trains to Reno, Kearney and C. F. Smith, the Big Horn posts of the Bozeman Trail went to and fro with guards of only moderate size. Officers had taken their wives and children to these far-away stations. The stockades were filled with soldiers' families. Big bands of Indians roamed the lovely valleys of the Piney, the Tongue, and Rosebud, near at hand, and rode into full view of the wary sentries at the stockades, yet made no hostile demonstration. Officers and men went far up the rocky canons of the hills in search of fish or game, and came back unmolested. Escorts reported that they sometimes marched all day long side by side with hunting bands of Sioux, a mile away; and often little parties, squaws and boys and young men, would ride confidently over and beg for sugar, coffee, hardtack--anything, and ride off with their plunder in the best of spirits and with all apparent good feeling. And yet the great war-chief of the Brules--Sintogaliska--Spotted Tail, the white man's friend, gave solemn warning not to trust the Ogallallas. "Red Cloud's heart is bad," he said. "He and his people are moving from the reservations to the mountains. They mean trouble." Old traders like Folsom heard and heeded, and Folsom himself hastened to Fort Frayne the very week that Burleigh and his escort left for Warrior Gap. Visiting at the ranch of his son in a beautiful nook behind the Medicine Bow Mountains, the veteran trader heard tidings from an Indian brave that filled him with apprehension, and he hurried to the fort.