John Colter, with the hardihood of a regular trapper, had cast himself loose from the party of Lewis and Clarke in the very heart of the wilderness, and had remained to trap beaver alone on the head waters of the Missouri. Here he fell in with another lonely trapper, like himself, named John Potts, formerly of the Lewis and dark expedition, and they agreed to keep together. They were in the very region of the terrible Blackfeet, at that time thirsting to revenge the death of their companion, and knew that they had to expect no mercy at their hands. They were obliged to keep concealed all day in the woody margins of the rivers, setting their traps after nightfall, and taking them up before daybreak. It was running a fearful risk for the sake of a few beaver skins; but such is the life of the trapper.

They were on a branch of the Missouri called Jefferson's Fork, and had set their traps at night, about six miles up a small river that emptied itself into the fork. Early in the morning they ascended the river in a canoe, to examine the traps. The banks on each side were high and perpendicular, and cast a shade over the stream. As they were softly paddling along, they heard the trampling of many feet upon the banks. Colter immediately gave the alarm of "Indians!" and was for instant retreat. Potts scoffed at him for being frightened by the trampling of a herd of buffaloes. Colter checked his uneasiness and paddled forward. They had not gone much further when frightful whoops and yells burst forth from each side of the river, and several hundred Indians appeared on either bank. Signs were made to the unfortunate trappers to come on shore. They were obliged to comply. Before they could get out of their canoe, a savage seized the rifle belonging to Potts.

Colter sprang on shore, wrested the weapon from the hands of the Indian, and restored it to his companion, who was still in the canoe, and immediately pushed into the stream. There was the sharp twang of a bow, and Potts cried out that he was wounded. Colter urged him to come on shore and submit, as his only chance for life; but the other knew there was no prospect of mercy, and determined to die game. Levelling his rifle, he shot one of the savages dead on the spot. The next moment he fell himself, pierced with innumerable arrows.

The vengeance of the savages now turned upon Colter. He was stripped naked, and, having some knowledge of the Blackfoot language, overheard a consultation as to the mode of dispatching him, so as to derive the greatest amusement from his death. Some were for setting him up as a mark, and having a trial of skill at his expense. The chief, however, was for nobler sport. He seized Colter by the shoulder, and demanded if he could run fast. The unfortunate trapper was too well acquainted with Indian customs not to comprehend the drift of the question. He knew he was to run for his life, to furnish a kind of human hunt to his persecutors. Though in reality he was noted among his brother hunters for swiftness of foot, he assured the chief that he was a very bad runner. His stratagem gained him some vantage ground. He was led by the chief into the prairie, about four hundred yards from the main body of savages, and then turned loose, to save himself if he could. A tremendous yell let him know that the whole pack of bloodhounds were off in full cry. Colter flew, rather than ran; he was astonished at his own speed; but he had six miles of prairie to traverse before he should reach the Jefferson fork of the Missouri; how could he hope to hold out such a distance with the fearful odds of several hundred to one against him! The plain too, abounded with the prickly pear, which wounded his naked feet.

Still he fled on, dreading each moment to hear the twang of a bow, and to feel an arrow quivering at his heart. He did not even dare to look round, lest he should lose an inch of that distance on which his life depended. He had run nearly half way across the plain when the sound of pursuit grew some what fainter, and he ventured to turn his head. The main body of his pursuers were a considerable distance behind; several of the fastest runners were scattered in the advance; while a swift-footed warrior, armed with a spear, was not more than a hundred yards behind him.

Inspired with new hope. Colter redoubled his exertions, but strained himself to such a degree, that the blood gushed from his mouth and nostrils, and streamed down his breast. He arrived within a mile of the river. The sound of footsteps gathered upon him. A glance behind showed his pursuer within twenty yards, and preparing to launch his spear. Stopping short, he turned round and spread out his arms. The savage, confounded by this sudden action, attempted to stop and hurl his spear, but fell in the very act. His spear stuck in the ground, and the shaft broke in his hand. Colter plucked up the pointed part, pinned the savage to the earth, and continued his flight. The Indians, as they arrived at their slaughtered companion, stopped to howl over him. Colter made the most of this precious delay, gained the skirt of cotton-wood bordering the river, dashed through it, and plunged into the stream. He swam to a neighboring island, against the upper end of which the driftwood had lodged in such quantities as to form a natural raft; under this he dived, and swam below water until he succeeded in getting a breathing place between the floating trunks of trees, whose, branches and bushes formed a covert several feet above the level of the water. He had scarcely drawn breath after all his toils, when he heard his pursuers on the river bank, whooping and yelling like so many fiends. They plunged in the river, and swam to the raft. The heart of Colter almost died within him as he saw them, through the chinks of his concealment, passing and repassing, and seeking for him in all directions. They at length gave up the search, and he began to rejoice in his escape, when the idea presented itself that they might set the raft on fire. Here was a new source of horrible apprehension, in which he remained until night fall. Fortunately, the idea did not suggest itself to the Indians. As soon as it was dark, finding by the silence around that his pursuers had departed. Colter dived again, and came up beyond the raft. He then swam silently down the river for a considerable distance, when he landed, and kept on all night, to get as far as possible from this dangerous neighborhood.