One, two, three seasons have often slipped away before the mountaineers found good hunting-ground. Ten years is a short enough time to learn the lie of the land in even a small section of mountains. It was twenty years from the time Lewis and Clark first crossed the mountains before the traders of St. Louis could be sure that the trappers sent into the Rockies would find their way out. Seventy lives were lost in the first two years of mountain trapping, some at the hands of the hostile Blackfeet guarding the entrance to the mountains at the head waters of the Missouri, some at the hands of the Snakes on the Upper Columbia, others between the Platte and Salt Lake. Time and money and life it cost to learn the hunting-grounds of the Rockies; and the mountaineers would not see knowledge won at such a cost wrested away by a spying rival. * * * * * Then, too, the mountains had bred a new type of trapper, a new style of trapping. Only the most daring hunters would sign contracts for the "Up-Country," or _Pays d'en Haut_ as the French called it. The French trappers, for the most part, kept to the river valleys and plains; and if one went to the mountains for a term of years, when he came out he was no longer the smug, indolent, laughing, chattering _voyageur_. The great silences of a life hard as the iron age had worked a change. To begin with, the man had become a horseman, a climber, a scout, a fighter of Indians and elements, lank and thin and lithe, silent and dogged and relentless. In other regions hunters could go out safely in pairs or even alone, carrying supplies enough for the season in a canoe, and drifting down-stream with a canoe-load of pelts to the fur post. But the mountains were so distant and inaccessible, great quantities of supplies had to be taken. That meant long cavalcades of pack-horses, which Blackfeet were ever on the alert to stampede. Armed guards had to accompany the pack-train. Out of a party of a hundred trappers sent to the mountains by the Rock Mountain Company, thirty were always crack rifle-shots for the protection of the company's property. One such party, properly officered and kept from crossing the animal's tracks, might not drive game from a valley. Two such bands of rival traders keen to pilfer each other's traps would result in ruin to both. That is the way the clash came in the early thirties of the last century. * * * * *