When Colter returned from his expedition of 1807, he found Manuel Lisa, of the Missouri Fur Company, already in the country, where he had just arrived from St. Louis. With him was one Potts, believed to be the same person who had been a private in the party of Lewis and Clark. In the spring of 1808, Colter and his old companion in arms set out to the headwaters of the Missouri on a trapping expedition. It was on a branch of Jefferson Fork that they went to work, and here they met with their disastrous experience. One morning while they were in a canoe examining their traps they were surprised by a large party of Blackfeet Indians. Potts attempted resistance and was slain on the spot. Colter, with more presence of mind, gave himself up as the only possible chance of avoiding immediate death. The Indians then consulted as to how they should kill him in order to yield themselves the greatest amount of amusement. Colter, upon being questioned as to his fleetness of foot, sagaciously replied that he was a poor runner (though in fact very swift), and the Indians, believing that it would be a safe experiment, decided that he should run for his life. Accordingly he was stripped naked and was led by the chief to a point three or four hundred yards in advance of the main body of the Indians. Here he was told "_to save himself if he could_," and the race began--one man against five hundred. The Indians quickly saw how they had been outwitted, for Colter flew away from them as if upon the wings of the wind. But his speed cost him dear. The exertion caused the blood to stream from his mouth and nostrils, and run down over his naked form. The prickly pear and the rough ground lacerated his feet. Six miles away across a level plain was a fringe of cottonwood on the banks of the Jefferson River. Short of that lay not a shadow of chance of concealment. It was a long race, but life hung upon the issue. The Indians had not counted on such prodigious running. Gradually they fell off, and when Colter ventured for the first time to glance back, only a small number were in his wake. Encouragement was now added to hope, and he ran even faster than before. But there was one Indian who was too much for him. He was steadily shortening the distance between them, and at last had arrived within a spear's throw. Was Colter to be slain by a single Indian after having distanced five hundred? He would see. Suddenly whirling about, he confronted the Indian, who was astounded at the sudden move and at Colter's bloody appearance. He tried to hurl his spear but stumbled and broke it as he fell. Colter seized the pointed portion and pinned the Indian to the earth.