Most famous of all the pathfinders of the United States are Lewis and Clark, explorers of the Missouri River to its headwaters, and of the Columbia from the heads of some of its chief tributaries to the Pacific; and thus the spanners of the continent. They were not, it is true, the first to traverse the wilderness which lay between the Atlantic and the Pacific, but of those who bore the name American they were the first.

In 1803 Louisiana was ceded by France to the United States for the sum of about fifteen millions of dollars; but its boundaries were entirely uncertain, and neither the nation which sold nor that which bought knew what this territory included, how far it extended north or south or west, nor who nor what were its inhabitants. It was certain that there were a few French, Spaniards, and Creoles, besides some Americans, English, and Germans, and the slaves which they possessed. Little was known of the country, save for a short distance beyond the Mississippi River; and it was obviously important to the new owners of the land to find out at once what the purchase meant to the United States.

One thing seemed certain: the population of the United States, which had already spread far beyond the Allegheny Mountains, was constantly increasing and constantly pushing westward. The encroachments of the whites on the territory occupied by various tribes of the Indians were continual, and the Indians, naturally enough, resented, and sometimes resisted, these encroachments. Here, west of the Mississippi River, was a vast territory, unoccupied save by Indian tribes, many of which were wanderers. The population of this unoccupied territory was so sparse that no doubt it seemed to President Jefferson that here was room for all the Indians east of the Mississippi, and one of his first acts after the cession was concluded, was to attempt to learn what he could with regard to the occupancy of this territory, presumably in the hope that all the Indians east of the Mississippi might be persuaded to move westward beyond the river.

Besides this, Jefferson had already—more than ten years before—endeavored to send out men to cross the continent to the Pacifice coast, but the effort had failed. But in January, 1803, before the completion of the purchase of Louisiana, he attempted this once more, recommending to Congress the despatching of a party to trace the Missouri River to its source, and to go thence to the Pacific Ocean.

It is impossible for any man now living to conceive what such an expedition must have meant to the men who were to command it. Here was a vast and unknown territory of indefinite width, peopled by unknown inhabitants, uncertain as to its food supply, containing unknown dangers and obstacles, which must be crossed on foot—though the journey should be begun by boat. It is true that the rumors long before brought back from the upper Mississippi Valley by Carver suggested waterways across the continent, but these were no more than rumors, and were mingled with an amount of fable which cast doubt on the whole story.

Carver’s reflections on the Shining Mountains, already quoted, were the most definite statements that Jefferson or his explorers could have had of that far Western country. It is true that a few Hudson’s Bay men had already penetrated as far west as the Rocky Mountains, which Mackenzie had crossed ten years before, yet it may be doubted whether any definite knowledge of this great achievement had as yet reached Washington.

The journey which Lewis and Clark were to make was into a wilderness less known than any that we in our day can conceive of.

The two men prepared to carry out their orders and there is no reason to suppose that they felt any doubt of their own success. Both came of good, old-fashioned fighting and exploring stock and they and all their men were made of the stuff which constituted the old-time Americans. Theirs was the sturdy independence, the unshrinking courage and dogged perseverance in the face of difficulty which gave to America its Daniel Boone, its David Crockett, and its Zebulon M. Pike; and they set out with eagerness on their journey.

The expedition started late in the year 1803, and proceeded up the river by boat. There were about forty-five men at the start, of whom twenty-five were soldiers, the whole company being enlisted as soldiers a little later. The baggage of the outfit consisted chiefly of ammunition, together with goods to be used as presents for the Indians. The transportation consisted of boats; one a keel boat, fifty-five feet long, drawing three feet of water, fitted for twenty-two oars and a sail; the other two were pirogues, open boats, dug-outs no doubt, one of six, the other of seven oars. There were two horses, which were to be taken along the bank for the purpose of hunting in time of scarcity, or for bringing in game that was killed.

Having wintered at Wood River, in Illinois, the start was made on the 14th of May, 1804. At first their progress was not rapid. Nevertheless, before long they came to the country of the Osages. The story given of the origin of the tribe is worth repeating: “According to universal belief, the founder of the nation was a snail, passing a quiet existence along the banks of the Osage, till a high flood swept him down to the Missouri and left him exposed on the shore. The heat of the sun at length ripened him into a man; but with the change of his nature he had not forgotten his native seats on the Osage, toward which he immediately bent his way. He was, however, soon overtaken by hunger and fatigue, when, happily, the Great Spirit appeared and, giving him a bow and arrow, showed him how to kill and cook deer, and cover himself with the skin. He then proceeded to his original residence; but as he approached the river he was met by a beaver, who inquired, haughtily, who he was and by what authority he came to disturb his possession. The Osage answered that the river was his own, for he had once lived on its borders. As they stood disputing, the daughter of the beaver came, and having by her entreaties reconciled her father to this young stranger, it was proposed that the Osage should marry the young beaver and share with her family the enjoyment of the river. The Osage readily consented, and from this happy union there soon came the village and the nation of the Wasbasha, or Osages, who have ever since preserved a pious reverence for their ancestors, abstaining from the chase of the beaver, because in killing that animal they killed a brother of the Osage.”